WO2016002646A1 - 高分子化合物およびそれを用いた発光素子 - Google Patents
高分子化合物およびそれを用いた発光素子 Download PDFInfo
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- WO2016002646A1 WO2016002646A1 PCT/JP2015/068464 JP2015068464W WO2016002646A1 WO 2016002646 A1 WO2016002646 A1 WO 2016002646A1 JP 2015068464 W JP2015068464 W JP 2015068464W WO 2016002646 A1 WO2016002646 A1 WO 2016002646A1
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- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910001958 silver carbonate Inorganic materials 0.000 description 1
- LKZMBDSASOBTPN-UHFFFAOYSA-L silver carbonate Substances [Ag].[O-]C([O-])=O LKZMBDSASOBTPN-UHFFFAOYSA-L 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- KBXGMZXLKCUSEB-UHFFFAOYSA-M sodium;[ethyl(oxidosulfinothioyl)amino]ethane Chemical compound [Na+].CCN(CC)S([O-])=S KBXGMZXLKCUSEB-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- NLDYACGHTUPAQU-UHFFFAOYSA-N tetracyanoethylene Chemical group N#CC(C#N)=C(C#N)C#N NLDYACGHTUPAQU-UHFFFAOYSA-N 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 235000019798 tripotassium phosphate Nutrition 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/124—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one nitrogen atom in the ring
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
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- H10K85/151—Copolymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/12—Copolymers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/10—Definition of the polymer structure
- C08G2261/14—Side-groups
- C08G2261/148—Side-chains having aromatic units
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/324—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain condensed
- C08G2261/3241—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain condensed containing one or more nitrogen atoms as the only heteroatom, e.g. carbazole
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/90—Applications
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- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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- H10K50/14—Carrier transporting layers
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- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
- H10K50/171—Electron injection layers
Definitions
- the present invention relates to a polymer compound and a light emitting device using the same.
- Organic electroluminescence elements (hereinafter also referred to as “light-emitting elements”) have high luminous efficiency and low driving voltage, and thus can be suitably used for display and lighting applications, and have recently attracted attention.
- This light-emitting element includes organic layers such as a light-emitting layer and a charge transport layer.
- an organic layer can be formed by a coating method typified by an ink jet printing method. Therefore, a polymer compound used for manufacturing a light-emitting element has been studied.
- Patent Document 1 a material used for a light-emitting layer of a light-emitting element, for example, a polymer compound containing an indolocarbazole structural unit represented by the following formula and an arylene structural unit has been studied (Patent Document 1).
- an indolocarbazole compound for example, a method in which an aryl halide compound and a secondary amine compound are subjected to Ullmann reaction in the presence of a copper catalyst, a base and a solvent (reaction represented by the following formula) Method) is known (Patent Document 2).
- An indolocarbazole compound can be suitably used as a raw material monomer for a polymer compound or a material used for an organic layer of a light emitting layer.
- a light emitting device manufactured using the above polymer compound does not necessarily have sufficient luminous efficiency.
- the yield of the obtained indolocarbazole compound is not necessarily sufficient in the above production method.
- an object of this invention is to provide a high molecular compound useful for manufacture of the light emitting element which is excellent in luminous efficiency.
- Another object of the present invention is to provide a compound useful for producing the polymer compound.
- Another object of the present invention is to provide a composition containing the polymer compound and a light-emitting device obtained using the polymer compound.
- Another object of the present invention is to provide a method for producing an indolocarbazole compound, which is excellent in yield.
- the present invention provides the following [1] to [13].
- a polymer compound comprising a structural unit represented by the following formula (1) and a structural unit represented by the following formula (Y) (different from the structural unit represented by the formula (1)) .
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryl It represents an oxy group or a monovalent heterocyclic group, and these groups may have a substituent.
- R 1 and R 2 , R 3 and R 4 , R 5 and R 6 , R 7 and R 8 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- R A and R B each independently represents an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- Ar Y1 represents an arylene group, a divalent heterocyclic group, or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are directly bonded, and these This group may have a substituent.
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 represent the same meaning as described above.
- R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R a , R b , R c and R d are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy Represents a group, an aryl group, an aryloxy group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- R 9 and R 10 , R 10 and R 11 , R 12 and R 13 , and R 13 and R 14 may be bonded to each other to form a ring together with the carbon atom to which they are bonded.
- [3] The polymer compound according to [2], wherein R a , R b , R c and R d are alkyl groups which may have a substituent.
- [4] The polymer compound according to any one of [1] to [3], wherein the structural unit represented by the formula (Y) is a structural unit represented by the following formula (Y-2).
- R Y1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may have a substituent.
- a plurality of R Y1 may be the same or different, and adjacent R Y1 may be bonded to each other to form a ring together with the carbon atom to which each is bonded.
- X Y1 represents a group represented by —C (R Y2 ) 2 —, a group represented by —C (R Y2 ) ⁇ C (R Y2 ) —, or —C (R Y2 ) 2 —C (R Y2 ) 2 represents a group represented by —.
- R Y2 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y2 may be the same or different, and R Y2 may be bonded to each other to form a ring together with the carbon atom to which each is bonded.
- the structural unit represented by the formula (Y) is a structural unit represented by the following formula (Y-5), (Y-6) or (Y-7): [1] to [3] The high molecular compound in any one of. [Where: R Y1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y1 may be the same or different, and adjacent R Y1 may be bonded to each other to form a ring together with the carbon atom to which each is bonded.
- R Y4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups optionally have a substituent.
- Ar X1 and Ar X3 each independently represent an arylene group or a divalent heterocyclic group, and these groups optionally have a substituent.
- Ar X2 and Ar X4 each independently represent an arylene group, a divalent heterocyclic group, or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are directly bonded to each other. And these groups may have a substituent.
- R X1 , R X2 and R X3 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryl It represents an oxy group or a monovalent heterocyclic group, and these groups may have a substituent.
- R 1 and R 2 , R 3 and R 4 , R 5 and R 6 , R 7 and R 8 may be bonded to each other to form a ring together with the carbon atoms to which they are bonded.
- R 9 , R 10 , R 11 , R 12 , R 13 and R 14 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryloxy group or monovalent group. It represents a heterocyclic group, and these groups may have a substituent.
- R 9 and R 10 , R 10 and R 11 , R 12 and R 13 , and R 13 and R 14 may be bonded to each other to form a ring together with the carbon atom to which they are bonded.
- R a ′, R b ′, R c ′ and R d ′ each independently represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group or a monovalent heterocyclic group. These groups may have a substituent.
- Z C1 and Z C2 each independently represent a group selected from the group consisting of the following substituent group A and substituent group B.
- ⁇ Substituent group A> A hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, —O—S ( ⁇ O) 2 R C1 (wherein R C1 represents an alkyl group, a cycloalkyl group or an aryl group, and these groups represent a substituent)
- R C1 represents an alkyl group, a cycloalkyl group or an aryl group, and these groups represent a substituent
- R C2 is Groups which may be the same or different and may be bonded to each other to form a ring structure together with the oxygen atoms to which they are bonded;
- a group represented by BF 3 Q ′ (wherein Q ′ represents Li, Na, K, Rb or Cs); -A group represented by MgY '(wherein Y' represents a chlorine atom, a bromine atom or an iodine atom);
- a group represented by —ZnY ′′ (wherein Y ′′ represents a chlorine atom, a bromine atom or an iodine atom); and -Sn (R C3) 3 (wherein, R C3 represents a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, these groups may have a substituent.
- R C3 is The groups may be the same or different, and may be bonded to each other to form a ring structure together with the tin atoms to which they are bonded.
- the polymer compound according to any one of [1] to [7] A composition comprising at least one material selected from the group consisting of a hole transport material, a hole injection material, an electron transport material, an electron injection material, a light emitting material, an antioxidant, and a solvent.
- a light emitting device obtained using the polymer compound according to any one of [1] to [7].
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryl It represents an oxy group or a monovalent heterocyclic group, and these groups may have a substituent.
- R 15 and R 16 are each independently an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group or a monovalent heterocyclic group, or the above-mentioned substituent group A and substituent B Represents a group selected from the group consisting of groups, and these groups may have a substituent.
- R 1 and R 2 , R 2 and R 15 , R 15 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 16 , R 16 and R 7 , R 7 and R 8 are respectively They may combine to form a ring with the carbon atoms to which they are attached.
- Y a represents a chlorine atom, a bromine atom, an iodine atom, or —O—S ( ⁇ O) 2 R C1 .
- R C1 represents an alkyl group, a cycloalkyl group, or an aryl group, and these groups optionally have a substituent.
- a plurality of Y a may be the same or different.
- R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 15 , R 16 and RC represent the same meaning as described above.
- a plurality of R C may be the same or different.
- R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R a , R b , R c and R d are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy Represents a group, an aryl group, an aryloxy group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- R 9 and R 10 , R 10 and R 11 , R 12 and R 13 , and R 13 and R 14 may be bonded to each other to form a ring together with the carbon atom to which they are bonded.
- [13] The method for producing a compound according to [12], wherein R a , R b , R c and R d are an alkyl group which may have a substituent.
- the high molecular compound useful for manufacture of the light emitting element which is excellent in luminous efficiency can be provided.
- the compound useful for manufacture of this high molecular compound can be provided.
- a composition containing the polymer compound and a light emitting device obtained using the polymer compound can be provided.
- a method for producing an indolocarbazole compound, which is excellent in reaction rate can be provided.
- Me represents a methyl group
- Et represents an ethyl group
- Bu represents a butyl group
- i-Pr represents an isopropyl group
- t-Bu represents a tert-butyl group.
- the hydrogen atom may be a deuterium atom or a light hydrogen atom.
- the solid line representing the bond with the central metal means a covalent bond or a coordinate bond.
- the “polymer compound” means a polymer having a molecular weight distribution and having a polystyrene-equivalent number average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 8 .
- Low molecular weight compound means a compound having no molecular weight distribution and a molecular weight of 1 ⁇ 10 4 or less.
- “Structural unit” means one or more units present in a polymer compound.
- the “alkyl group” may be linear or branched.
- the number of carbon atoms of the straight chain alkyl group is usually 1 to 50, preferably 3 to 30, and more preferably 4 to 20, excluding the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkyl group is usually 3 to 50, preferably 3 to 30, more preferably 4 to 20, excluding the number of carbon atoms of the substituent.
- the alkyl group may have a substituent, for example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, tert-butyl group, pentyl group, isoamyl group, 2-ethylbutyl group, Hexyl group, heptyl group, octyl group, 2-ethylhexyl group, 3-propylheptyl group, decyl group, 3,7-dimethyloctyl group, 2-ethyloctyl group, 2-hexyldecyl group, dodecyl group, and these Examples include groups in which the hydrogen atom in the group is substituted with a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, a fluorine atom, etc., for example, a trifluoromethyl group, a pentafluoroeth
- the number of carbon atoms of the “cycloalkyl group” is usually 3 to 50, preferably 3 to 30, and more preferably 4 to 20, excluding the number of carbon atoms of the substituent.
- the cycloalkyl group may have a substituent, and examples thereof include a cyclohexyl group, a cyclohexylmethyl group, and a cyclohexylethyl group.
- Aryl group means an atomic group remaining after removing one hydrogen atom directly bonded to a carbon atom constituting a ring from an aromatic hydrocarbon.
- the number of carbon atoms of the aryl group is usually 6 to 60, preferably 6 to 20, more preferably 6 to 10, not including the number of carbon atoms of the substituent.
- the “alkoxy group” may be linear or branched.
- the number of carbon atoms of the straight-chain alkoxy group is usually 1 to 40, preferably 4 to 10, excluding the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkoxy group is usually 3 to 40, preferably 4 to 10, excluding the number of carbon atoms of the substituent.
- the alkoxy group may have a substituent, for example, methoxy group, ethoxy group, propyloxy group, isopropyloxy group, butyloxy group, isobutyloxy group, tert-butyloxy group, pentyloxy group, hexyloxy group, Heptyloxy group, octyloxy group, 2-ethylhexyloxy group, nonyloxy group, decyloxy group, 3,7-dimethyloctyloxy group, lauryloxy group, and the hydrogen atom in these groups is a cycloalkyl group, an alkoxy group, And a group substituted with a cycloalkoxy group, an aryl group, a fluorine atom, or the like.
- a substituent for example, methoxy group, ethoxy group, propyloxy group, isopropyloxy group, butyloxy group, isobutyloxy group, tert-buty
- the number of carbon atoms of the “cycloalkoxy group” is usually 3 to 40, preferably 4 to 10, not including the number of carbon atoms of the substituent.
- the cycloalkoxy group may have a substituent, and examples thereof include a cyclohexyloxy group.
- the number of carbon atoms of the “aryloxy group” is usually 6 to 60, preferably 7 to 48, not including the number of carbon atoms of the substituent.
- the aryloxy group may have a substituent, for example, a phenoxy group, 1-naphthyloxy group, 2-naphthyloxy group, 1-anthracenyloxy group, 9-anthracenyloxy group, 1- Examples include a pyrenyloxy group and a group in which a hydrogen atom in these groups is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, a fluorine atom, or the like.
- P-valent heterocyclic group (p represents an integer of 1 or more) is a p-group of hydrogen atoms directly bonded to a carbon atom or a hetero atom constituting a ring from a heterocyclic compound. This means the remaining atomic group excluding the hydrogen atom.
- this is an atomic group obtained by removing p hydrogen atoms from an aromatic heterocyclic compound directly bonded to carbon atoms or heteroatoms constituting the ring.
- a “p-valent aromatic heterocyclic group” is preferable.
- Aromatic heterocyclic compounds '' are oxadiazole, thiadiazole, thiazole, oxazole, thiophene, pyrrole, phosphole, furan, pyridine, pyrazine, pyrimidine, triazine, pyridazine, quinoline, isoquinoline, carbazole, dibenzophosphole, etc.
- a compound in which the ring itself exhibits aromaticity and a heterocyclic ring such as phenoxazine, phenothiazine, dibenzoborol, dibenzosilol, and benzopyran itself does not exhibit aromaticity, but the aromatic ring is condensed to the heterocyclic ring.
- the number of carbon atoms of the monovalent heterocyclic group is usually 2 to 60, preferably 4 to 20, excluding the number of carbon atoms of the substituent.
- the monovalent heterocyclic group may have a substituent, for example, thienyl group, pyrrolyl group, furyl group, pyridyl group, piperidinyl group, quinolinyl group, isoquinolinyl group, pyrimidinyl group, triazinyl group, and these And a group in which the hydrogen atom in the group is substituted with an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, or the like.
- Halogen atom means a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- the “amino group” may have a substituent, and a substituted amino group is preferable.
- a substituent which an amino group has an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group is preferable.
- the substituted amino group include a dialkylamino group, a dicycloalkylamino group, and a diarylamino group.
- the amino group include dimethylamino group, diethylamino group, diphenylamino group, bis (4-methylphenyl) amino group, bis (4-tert-butylphenyl) amino group, bis (3,5-di-tert- Butylphenyl) amino group.
- the “alkenyl group” may be linear or branched.
- the number of carbon atoms of the straight-chain alkenyl group is usually 2-30, preferably 3-20, excluding the number of carbon atoms of the substituent.
- the number of carbon atoms of the branched alkenyl group is usually 3 to 30, preferably 4 to 20, not including the number of carbon atoms of the substituent.
- the number of carbon atoms of the “cycloalkenyl group” is usually 3 to 30, preferably 4 to 20, not including the number of carbon atoms of the substituent.
- the alkenyl group and the cycloalkenyl group may have a substituent, for example, a vinyl group, a 1-propenyl group, a 2-propenyl group, a 2-butenyl group, a 3-butenyl group, a 3-pentenyl group, a 4-pentenyl group, Examples include a pentenyl group, a 1-hexynyl group, a 5-hexynyl group, a 7-octenyl group, and groups in which these groups have a substituent.
- the “alkynyl group” may be linear or branched.
- the number of carbon atoms of the alkynyl group is usually 2 to 20, preferably 3 to 20, not including the carbon atom of the substituent.
- the number of carbon atoms of the branched alkynyl group is usually from 4 to 30, and preferably from 4 to 20, not including the carbon atom of the substituent.
- the number of carbon atoms of the “cycloalkynyl group” is usually 4 to 30, preferably 4 to 20, not including the carbon atom of the substituent.
- the alkynyl group and cycloalkynyl group may have a substituent, for example, ethynyl group, 1-propynyl group, 2-propynyl group, 2-butynyl group, 3-butynyl group, 3-pentynyl group, 4- Examples include a pentynyl group, 1-hexynyl group, 5-hexynyl group, and groups in which these groups have a substituent.
- the “arylene group” means an atomic group remaining after removing two hydrogen atoms directly bonded to a carbon atom constituting a ring from an aromatic hydrocarbon.
- the number of carbon atoms of the arylene group is usually 6 to 60, preferably 6 to 30, and more preferably 6 to 18, excluding the number of carbon atoms of the substituent.
- the arylene group may have a substituent, for example, phenylene group, naphthalenediyl group, anthracenediyl group, phenanthrene diyl group, dihydrophenanthenediyl group, naphthacene diyl group, fluorenediyl group, pyrenediyl group, perylene diyl group, Examples include chrysenediyl groups and groups in which these groups have substituents, and groups represented by formulas (A-1) to (A-20) are preferable.
- the arylene group includes a group in which a plurality of these groups are bonded.
- R and R a each independently represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group.
- a plurality of R and R a may be the same or different, and R a may be bonded to each other to form a ring together with the atoms to which each is bonded.
- the number of carbon atoms of the divalent heterocyclic group is usually 2 to 60, preferably 3 to 20, and more preferably 4 to 15, excluding the number of carbon atoms of the substituent.
- the divalent heterocyclic group may have a substituent, for example, pyridine, diazabenzene, triazine, azanaphthalene, diazanaphthalene, carbazole, dibenzofuran, dibenzothiophene, dibenzosilol, phenoxazine, phenothiazine, acridine, Divalent acridine, furan, thiophene, azole, diazole, and triazole include divalent groups obtained by removing two hydrogen atoms from hydrogen atoms directly bonded to carbon atoms or heteroatoms constituting the ring, and preferably Is a group represented by formula (AA-1) to formula (AA-34).
- the divalent heterocyclic group includes a group in which a plurality of these groups
- crosslinking group is a group capable of generating a new bond by being subjected to heat treatment, ultraviolet irradiation treatment, radical reaction or the like, and preferably has the formula (B-1)-(B-17 ). These groups may have a substituent.
- “Substituent” means a halogen atom, cyano group, alkyl group, cycloalkyl group, aryl group, monovalent heterocyclic group, alkoxy group, cycloalkoxy group, aryloxy group, amino group, substituted amino group, alkenyl group. Represents a cycloalkenyl group, an alkynyl group or a cycloalkynyl group.
- the substituent may be a crosslinking group.
- the polymer compound of the present invention is a polymer compound containing a structural unit represented by the formula (1) and a structural unit represented by the formula (Y).
- R 1 to R 8 are preferably a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group, and more preferably a hydrogen atom, an alkyl group, because the light emitting device using the polymer compound of the present invention is more excellent in luminous efficiency.
- a group or a cycloalkyl group, more preferably a hydrogen atom, and these groups optionally have a substituent.
- the group represented by R 1 to R 8 may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group or an aryl group.
- R A and R B are preferably an aryl group because the polymer compound of the present invention is excellent in stability, and this aryl group may have a substituent.
- the aryl group represented by R A and R B is preferably a phenyl group which may have a substituent, since the light emission efficiency of the light emitting device using the polymer compound of the present invention is more excellent.
- Preferred is a phenyl group substituted with an alkyl group or a cycloalkyl group, and more preferred is a phenyl group substituted with an alkyl group.
- the groups represented by R A and R B may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group or an aryl group.
- the structural unit represented by the formula (1) is preferably a structural unit represented by the formula (1-1), since the light emitting element using the polymer compound of the present invention is more excellent in luminous efficiency.
- R 9 to R 14 are preferably a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group, and more preferably a hydrogen atom, an alkyl group, because the light-emitting device using the polymer compound of the present invention is more excellent in luminous efficiency.
- a group or a cycloalkyl group, more preferably a hydrogen atom, and these groups optionally have a substituent.
- the group represented by R 9 to R 14 may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group, or an aryl group.
- R a , R b , R c and R d are preferably a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, and more preferably a hydrogen atom, an alkyl group, because the polymer compound of the present invention is excellent in stability.
- a group or a cycloalkyl group, more preferably an alkyl group or a cycloalkyl group, and particularly preferably an alkyl group, and these groups optionally have a substituent.
- R a , R b , R c and R d may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group or an aryl group.
- the total amount of the structural unit represented by the formula (1) is preferably 0.1 to the total content of the structural units contained in the polymer compound because the stability of the polymer compound of the present invention is excellent. It is 50 mol%, more preferably 1 to 30 mol%, still more preferably 2 to 15 mol%.
- Examples of the structural unit represented by the formula (1) include structural units represented by the formula (1-a) to the formula (1-z) and the formula (1-aa) to the formula (1-cc).
- the structural units represented by formula (1-a) to formula (1-q) are preferred, the structural units represented by formula (1-a) to formula (1-k) are more preferred, and the formula (1 The structural units represented by -a) to formula (1-i) are more preferred.
- the structural unit represented by the formula (1) may be included in the polymer compound alone or in combination of two or more.
- the arylene group represented by Ar Y1 is represented by formula (A-1), formula (A-6), formula (A-7), formula (A-9) to formula (A-11), formula (A) A-13) or a group represented by formula (A-19), more preferably in formula (A-1), formula (A-7), formula (A-9) or formula (A-19). And particularly preferably a group represented by the formula (A-9), and these groups may have a substituent.
- the divalent heterocyclic group represented by Ar Y1 is represented by the formula (AA-4), formula (AA-10), formula (AA-13), formula (AA-15), formula (AA-18) ) Or a group represented by formula (AA-20), more preferably represented by formula (AA-4), formula (AA-10), formula (AA-18) or formula (AA-20) These groups may have a substituent.
- the range, particularly preferred range is the same as the more preferred range, further preferred range, particularly preferred range of the above-mentioned arylene group and divalent heterocyclic group represented by Ar Y1 .
- Examples of the divalent group in which at least one arylene group represented by Ar Y1 and at least one divalent heterocyclic group are directly bonded include groups represented by the following formulas, The group may have a substituent.
- R XX represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- R XX is preferably an alkyl group, a cycloalkyl group, or an aryl group, and these groups optionally have a substituent.
- the substituent that the group represented by Ar Y1 may have is preferably an alkyl group, a cycloalkyl group, or an aryl group, and these groups may further have a substituent.
- Examples of the structural unit represented by the formula (Y) include structural units represented by the formulas (Y-1) to (Y-7), and brightness of a light-emitting element using the polymer compound of the present invention. From the viewpoint of lifetime, it is preferably a structural unit represented by (Y-1) or (Y-2), and from the viewpoint of electron transport properties, preferably the formula (Y-3) or (Y-4) From the viewpoint of hole transportability, it is preferably a structural unit represented by formulas (Y-5) to (Y-7). Further, from the viewpoint of the light emission efficiency of the light emitting device using the polymer compound of the present invention, it is preferably a structural unit represented by the formula (Y-2) or the formulas (Y-5) to (Y-7). More preferably, it is a structural unit represented by the formula (Y-2).
- R Y1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- a plurality of R Y1 may be the same or different, and adjacent R Y1 may be bonded to each other to form a ring together with the carbon atom to which each is bonded.
- R Y1 is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group, and these groups optionally have a substituent.
- a group represented by —C (R Y2 ) 2 — represented by X Y1 , a group represented by —C (R Y2 ) ⁇ C (R Y2 ) — and —C (R Y2 ) 2 —C (R R Y2 in the group represented by Y2 ) 2 — is preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an alkyl group, a cycloalkyl group or an aryl group, These groups may have a substituent.
- the combination of two R Y2 in the group represented by —C (R Y2 ) 2 — is preferably an alkyl group or a cycloalkyl group, both are aryl groups, and both are monovalent complex A cyclic group, or one is an alkyl group or a cycloalkyl group and the other is an aryl group or a monovalent heterocyclic group, more preferably one is an alkyl group or a cycloalkyl group and the other is an aryl group. May have a substituent.
- R Y2 s may be bonded to each other to form a ring together with the carbon atoms to which they are bonded, and when R Y2 forms a ring, a group represented by —C (R Y2 ) 2 — Are preferably groups represented by the formulas (Y-A1) to (Y-A5), more preferably groups represented by the formula (Y-A4), and these groups have a substituent. You may do it.
- the combination of two R Y2 in the group represented by —C (R Y2 ) ⁇ C (R Y2 ) — is preferably such that both are alkyl groups or cycloalkyl groups, or one is an alkyl group Alternatively, a cycloalkyl group and the other is an aryl group, and these groups may have a substituent.
- R Y2 in the group represented by —C (R Y2 ) 2 —C (R Y2 ) 2 — are preferably an alkyl group or a substituent which may have a substituent. It is a cycloalkyl group that may have.
- a plurality of R Y2 may be bonded to each other to form a ring together with the carbon atoms to which each is bonded.
- —C (R Y2 ) 2 —C (R Y2 ) 2 — are preferably groups represented by the formulas (Y-B1) to (Y-B5), more preferably groups represented by the formula (Y-B3). It may have a substituent.
- R Y2 represents the same meaning as described above.
- R Y1 represents the same meaning as described above.
- R Y3 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may have a substituent.
- R Y3 is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group, and these groups have a substituent. May be.
- R Y4 is preferably an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group, and these groups have a substituent. May be.
- Examples of the structural unit represented by the formula (Y) include structural units represented by the formulas (Y-11) to (Y-55).
- the structural unit represented by the formula (Y), in which Ar Y1 is an arylene group, is included in the polymer compound because the light-emitting element using the polymer compound of the present invention has better luminous efficiency.
- the content is preferably 0.5 to 80 mol%, more preferably 30 to 60 mol%, based on the total content of the structural units.
- Ar Y1 is a divalent heterocyclic group, or at least one arylene group and at least one divalent heterocyclic group directly bonded to each other.
- the structural unit represented by the formula (Y) may be included in the polymer compound alone or in combination of two or more.
- the polymer compound of the present invention may further contain a structural unit represented by the formula (X).
- a X1 is preferably 2 or less, more preferably 1, because the luminance life of the light-emitting device using the polymer compound of the present invention is excellent.
- a X2 is preferably 2 or less, more preferably 0, because the luminance lifetime of the light-emitting device using the polymer compound of the present invention is excellent.
- R X1 , R X2 and R X3 are preferably an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, more preferably an aryl group, and these groups have a substituent. Also good.
- the arylene group represented by Ar X1 and Ar X3 is more preferably a group represented by the formula (A-1) or the formula (A-9), more preferably a formula (A-1). These groups may have a substituent.
- the divalent heterocyclic group represented by Ar X1 and Ar X3 is more preferably represented by Formula (AA-1), Formula (AA-2), or Formula (AA-7) to Formula (AA-26). These groups may have a substituent.
- Ar X1 and Ar X3 are preferably an arylene group which may have a substituent.
- the arylene group represented by Ar X2 and Ar X4 is represented by Formula (A-1), Formula (A-6), Formula (A-7), Formula (A-9) to Formula (A-11). Or it is group represented by a formula (A-19), and these groups may have a substituent.
- the more preferable range of the divalent heterocyclic group represented by Ar X2 and Ar X4 is the same as the more preferable range of the divalent heterocyclic group represented by Ar X1 and Ar X3 .
- Further preferred ranges are the same as the more preferred ranges and further preferred ranges of the arylene group and divalent heterocyclic group represented by Ar X1 and Ar X3 , respectively.
- the divalent group in which at least one arylene group represented by Ar X2 and Ar X4 and at least one divalent heterocyclic group are directly bonded to each other is at least represented by Ar Y1 in the formula (Y) Examples thereof include the same divalent group in which one kind of arylene group and at least one kind of divalent heterocyclic group are directly bonded.
- Ar X2 and Ar X4 are preferably an arylene group which may have a substituent.
- the substituent that the groups represented by Ar X1 to Ar X4 and R X1 to R X3 may have is preferably an alkyl group, a cycloalkyl group or an aryl group, and these groups further have a substituent. You may do it.
- the structural unit represented by the formula (X) is preferably a structural unit represented by the formulas (X-1) to (X-7), more preferably the formula (X-3) to (X-7). ), More preferably structural units represented by formulas (X-3) to (X-6).
- R X4 and R X5 each independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, a halogen atom, a monovalent heterocyclic group or cyano. Represents a group, and these groups may have a substituent.
- a plurality of R X4 may be the same or different.
- a plurality of R X5 may be the same or different, and adjacent R X5 may be bonded to each other to form a ring together with the carbon atom to which each is bonded.
- the structural unit represented by the formula (X) has excellent hole transportability, it is preferably 0.1 to 50 mol%, more preferably 1 to 5 mol% based on the total amount of structural units contained in the polymer compound. 30 mol%, more preferably 2 to 20 mol%.
- Examples of the structural unit represented by the formula (X) include structural units represented by the formulas (X1-1) to (X1-19), preferably the formulas (X1-6) to (X1-14). ).
- the structural unit represented by the formula (X) may be included alone or in combination of two or more.
- polymer compound of the present invention examples include polymer compounds P-1 and P-8 shown in Table 1.
- the “other structural unit” means a structural unit other than the structural units represented by formula (1), formula (Y-1) to formula (Y-7), and formula (X).
- p, q, r, s, t, and u represent the molar ratio of each structural unit.
- p + q + r + s + t + u 100 and 70 ⁇ p + q + r + s + t ⁇ 100.
- the other structural unit means a structural unit other than the structural units represented by Formula (1), Formula (Y-1) to Formula (Y-7), and Formula (X). ]
- the terminal group of the polymer compound of the present invention preferably has a polymerization active group as it is, because when the polymer compound is used for the production of a light emitting device, the light emission characteristics and the luminance life may be lowered. It is a stable group.
- the terminal group is preferably a group conjugated to the main chain, and includes a group bonded to an aryl group or a monovalent heterocyclic group via a carbon-carbon bond.
- the polymer compound of the present invention may be any of a block copolymer, a random copolymer, an alternating copolymer, and a graft copolymer, and may be in other embodiments, but a plurality of types of raw materials A copolymer obtained by copolymerizing monomers is preferred.
- the polymer compound of the present invention includes, for example, a compound represented by formula (M-1), a compound represented by formula (M-2), and another compound (for example, represented by formula (M-3)). And / or a compound represented by the formula (M-4)) by condensation polymerization.
- M-1 a compound represented by formula
- M-2 a compound represented by formula
- M-3 another compound
- M-4 a compound represented by the formula (M-4)) by condensation polymerization.
- the compounds used for the production of the polymer compound of the present invention are sometimes collectively referred to as “raw material monomers”.
- R 1 to R 8 , R A , R B , Ar Y1 , a 1 , a 2 , Ar X1 to Ar X4 and R X1 to R X3 have the same meaning as described above.
- Z C1 to Z C8 each independently represents a group selected from the group consisting of the substituent group A and the substituent group B.
- Z C1 , Z C2 and Z C5 to Z C8 are groups selected from the substituent group A
- Z C3 and Z C4 select groups selected from the substituent group B.
- Z C1 , Z C2 and Z C5 to Z C8 are groups selected from the substituent group B
- Z C3 and Z C4 select a group selected from the substituent group A.
- ⁇ Substituent group A> A hydrogen atom, a chlorine atom, a bromine atom, an iodine atom, —O—S ( ⁇ O) 2 R C1 (wherein R C1 represents an alkyl group, a cycloalkyl group or an aryl group, and these groups represent a substituent)
- R C1 represents an alkyl group, a cycloalkyl group or an aryl group, and these groups represent a substituent
- R C2 is Groups which may be the same or different and may be bonded to each other to form a ring structure together with the oxygen atoms to which they are bonded;
- a group represented by BF 3 Q ′ (wherein Q ′ represents Li, Na, K, Rb or Cs); -A group represented by MgY '(wherein Y' represents a chlorine atom, a bromine atom or an iodine atom);
- a group represented by —ZnY ′′ (wherein Y ′′ represents a chlorine atom, a bromine atom or an iodine atom); and -Sn (R C3) 3 (wherein, R C3 represents a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, these groups may have a substituent.
- More existing R C3 is The groups may be the same or different, and may be bonded to each other to form a ring structure together with the tin atoms to which
- Examples of the group represented by —B (OR C2 ) 2 include groups represented by the following formulae.
- the compound having a group selected from the substituent group A and the compound having a group selected from the substituent group B are subjected to condensation polymerization by a known coupling reaction, and the group selected from the substituent group A and the substituent group B Carbon atoms bonded to a group selected from are bonded to each other. Therefore, if a compound having two groups selected from Substituent Group A and a compound having two groups selected from Substituent Group B are subjected to a known coupling reaction, condensation of these compounds by condensation polymerization A polymer can be obtained.
- the condensation polymerization is usually carried out in the presence of a catalyst, a base and a solvent, but may be carried out in the presence of a phase transfer catalyst if necessary.
- the catalyst examples include dichlorobis (triphenylphosphine) palladium, dichlorobis (tris-o-methoxyphenylphosphine) palladium, palladium [tetrakis (triphenylphosphine)], [tris (dibenzylideneacetone)] dipalladium, palladium acetate and the like.
- transition metal complexes such as palladium complexes of nickel, nickel [tetrakis (triphenylphosphine)], [1,3-bis (diphenylphosphino) propane] dichloronickel, [bis (1,4-cyclooctadiene)] nickel Metal complexes; these transition metal complexes may further include complexes having ligands such as triphenylphosphine, tri-o-tolylphosphine, tri-tert-butylphosphine, tricyclohexylphosphine, diphenylphosphinopropane, bipyridyl, etc. .
- a catalyst may be used individually by 1 type, or may use 2 or more types together.
- the amount of catalyst used is usually 0.00001 to 3 molar equivalents as the amount of transition metal relative to the total number of moles of raw material monomers.
- Examples of the base and phase transfer catalyst include inorganic bases such as sodium carbonate, potassium carbonate, cesium carbonate, potassium fluoride, cesium fluoride, and tripotassium phosphate; organics such as tetrabutylammonium fluoride and tetrabutylammonium hydroxide.
- Examples of the base include phase transfer catalysts such as tetrabutylammonium chloride and tetrabutylammonium bromide. Each of the base and the phase transfer catalyst may be used alone or in combination of two or more.
- the amount of base and phase transfer catalyst used is usually 0.001 to 100 molar equivalents relative to the total number of moles of raw material monomers.
- the solvent examples include organic solvents such as toluene, xylene, mesitylene, tetrahydrofuran, 1,4-dioxane, dimethoxyethane, N, N-dimethylacetamide, N, N-dimethylformamide, and water.
- organic solvents such as toluene, xylene, mesitylene, tetrahydrofuran, 1,4-dioxane, dimethoxyethane, N, N-dimethylacetamide, N, N-dimethylformamide, and water.
- a solvent may be used individually by 1 type, or may use 2 or more types together.
- the amount of solvent used is usually 10 to 100000 parts by weight with respect to 100 parts by weight of the total amount of raw material monomers.
- the reaction temperature of the condensation polymerization is usually -100 to 200 ° C.
- the reaction time of the condensation polymerization is usually 1 hour or more.
- Post-treatment of the polymerization reaction is a known method, for example, a method of removing water-soluble impurities by liquid separation, adding the reaction solution after polymerization reaction to a lower alcohol such as methanol, filtering the deposited precipitate, and then drying. These methods are carried out alone or in combination.
- a lower alcohol such as methanol
- filtering the deposited precipitate and then drying.
- these methods are carried out alone or in combination.
- the purity of the polymer compound is low, it can be purified by a usual method such as recrystallization, reprecipitation, continuous extraction with a Soxhlet extractor, column chromatography, or the like.
- the compound represented by the formula (M-1) is useful as a raw material monomer for the polymer compound of the present invention.
- R 1 to R 8 , R A , R B , Z C1 and Z C2 represent the same meaning as described above.
- the compound represented by the formula (M-1) When the compound represented by the formula (M-1) is used for the production of the polymer compound of the present invention, the luminous efficiency of the light emitting device using the polymer compound of the present invention is more excellent.
- the compound represented by 1-1) is preferred, and the compound represented by Formula (M-1-2) is more preferred.
- R 1 to R 14 , R a , R b , R c , R d , Z C1 and Z C2 represent the same meaning as described above.
- R a ′, R b ′, R c ′ and R d ′ represent the polymer of the present invention when the compound represented by the formula (M-1-2) is used for the production of the polymer compound of the present invention. Since the stability of the compound is excellent, an alkyl group, a cycloalkyl group or an aryl group is preferable, an alkyl group or a cycloalkyl group is more preferable, and an alkyl group is particularly preferable. These groups have a substituent. You may do it.
- R a ′, R b ′, R c ′ and R d ′ may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group or an aryl group.
- the method for producing the compound of the present invention comprises a compound represented by the formula (Z) and a compound represented by the formula (2) in the presence of a transition metal complex having a phosphine as a ligand, a base and a solvent.
- R C is preferably an aryl group because the yield of the compound obtained by the production method of the present invention is more excellent.
- the group represented by R C may have a substituent.
- the substituent is preferably an alkyl group.
- Examples of the compound represented by the formula (Z) include compounds represented by the formulas (Z-1) to (Z-5).
- the compound represented by the formula (Z) may be used alone or in combination of two or more.
- R 15 and R 16 are preferably a hydrogen atom, an alkyl group, a cycloalkyl group, or an aryl group, more preferably a hydrogen atom or an alkyl group, because the yield of the compound obtained by the production method of the present invention is more excellent. More preferably a hydrogen atom.
- the groups represented by R 15 and R 16 may have a substituent.
- the substituent is preferably an alkyl group.
- Y a is preferably a bromine atom or an iodine atom, and more preferably a bromine atom, because the yield of the compound obtained by the production method of the present invention is more excellent.
- Examples of the compound represented by the formula (2) include compounds represented by the formulas (2-1) to (2-4).
- the compound represented by the formula (2) may be used alone or in combination of two or more.
- the compound represented by the formula (M-1 ′) is preferably a compound represented by the formula (M-1′-1) because the yield of the compound obtained by the production method of the present invention is more excellent. .
- R 9 to R 14 , R a , R b , R c and R d in the compound represented by the formula (M-1′-1) are structural units represented by the formula (1-1)
- the definitions and examples of R 9 to R 14 , R a , R b , R c and R d in are the same.
- R a , R b , R c and R d in the compound represented by the formula (M-1′-1) have a substituent because the yield of the compound obtained by the production method of the present invention is better. It is preferably an alkyl group that may be present.
- Examples of the compound represented by the formula (M-1 ′) include compounds represented by the formulas (M-1′-1) to (M-1′-9).
- transition metal complexes with phosphine ligands include a palladium complex having a phosphine ligand and a nickel complex having a phosphine ligand, and the yield of the compound obtained by the production method of the present invention is more excellent.
- a palladium complex having a phosphine ligand is preferred.
- transition metal complex having a phosphine ligand examples include dichlorobis (triphenylphosphine) palladium, dichlorobis (tris-o-methoxyphenylphosphine) palladium, and palladium [tetrakis (triphenylphosphine)].
- the transition metal complex having a phosphine ligand used in the production method of the present invention is prepared in the reaction system by separately adding the transition metal complex having no phosphine ligand and the phosphine compound to the reaction system. It is preferable to do.
- transition metal complexes having no phosphine ligand examples include [tris (dibenzylideneacetone)] dipalladium, bis (dibenzylideneacetone) palladium, palladium chloride, palladium acetate, and bis (benzonitrile) dichloropalladium. [Tris (dibenzylideneacetone)] dipalladium, bis (dibenzylideneacetone) palladium, palladium chloride or palladium acetate is preferred, and [Tris (dibenzylideneacetone)] dipalladium or palladium acetate is more preferred.
- Examples of the phosphine compound include at least one selected from the group consisting of an alkyl group (the alkyl group may have a substituent) and an aryl group (the aryl group may have a substituent).
- bonded with the phosphorus atom is mentioned, Among these, the trialkyl phosphine compound or aryl phosphine compound which three alkyl groups couple
- Examples of the phosphine compound include triphenylphosphine, tri-o-tolylphosphine, tri-tert-butylphosphine, tricyclohexylphosphine, di-tert-butylphenylphosphine, and tri-n-butylphosphine. -Butylphosphine or di-tert-butylphenylphosphine is preferred.
- a transition metal complex having a phosphine ligand used in the production method of the present invention is prepared in a reaction system by separately adding a transition metal complex not having a phosphine ligand and a phosphine compound into the reaction system.
- the amount of the phosphine compound used is usually 0.5 to 20 molar equivalents and 1 to 10 molar equivalents relative to the total number of moles of the transition metal complex having no phosphine ligand. It is preferably 1 to 5 molar equivalents.
- a transition metal complex having a phosphine ligand used in the production method of the present invention is prepared in a reaction system by separately adding a transition metal complex not having a phosphine ligand and a phosphine compound into the reaction system.
- the amount of the transition metal complex having no phosphine ligand is preferably 0.00001 to 3 molar equivalents relative to the total number of moles of the compound represented by formula (2), The amount is more preferably 0.00005 to 1 molar equivalent, and further preferably 0.0001 to 0.5 molar equivalent.
- the transition metal complex having a phosphine ligand may be used alone or in combination of two or more.
- base examples of the base used in the production method of the present invention include sodium carbonate, potassium hydroxide, sodium hydroxide, potassium carbonate, cesium carbonate, potassium phosphate, sodium tert-butoxide, lithium tert-butoxide, and potassium tert-butoxide. Preferred is sodium tert-butoxide.
- the amount of the base used is preferably 0.1 to 30 molar equivalents and more preferably 0.5 to 20 molar equivalents with respect to the total number of moles of the compound represented by the formula (2). More preferably, it is 1 to 10 molar equivalents.
- the bases may be used alone or in combination of two or more.
- the solvent used in the production method of the present invention is preferably an organic solvent.
- the organic solvent include toluene, xylene (o-xylene, m-xylene, p-xylene, and mixtures thereof), mesitylene, tetrahydrofuran, 1,4-dioxane, dimethoxyethane, N, N-dimethylacetamide, N, N-dimethylformamide may be mentioned.
- the amount of the solvent used is usually 0.1 to 100 parts by weight, preferably 1 to 80 parts by weight, based on 1 part by weight of the compound represented by the formula (2), and 5 to 50 parts by weight. It is more preferable that
- the solvent may be used alone or in combination of two or more.
- reaction temperature In the production method of the present invention, the reaction temperature is usually 0 ° C. to 200 ° C., preferably 50 ° C. to 150 ° C., more preferably 80 ° C. to 130 ° C.
- reaction time In the production method of the present invention, the reaction time is usually 0.5 to 24 hours, preferably 1 to 12 hours, and more preferably 1 to 8 hours.
- the compound represented by the formula (M-1-2), which is a raw material monomer of the polymer compound of the present invention, can be produced, for example, according to the following scheme.
- Z C1 and Z C2 represent the same meaning as described above.
- Y 1a and Y 2a represent a chlorine atom, a bromine atom or an iodine atom.
- Y 1a is an atom having an atomic number larger than that of Y 2a .
- Y 1b represents a group selected from the substituent group B.
- R 1a represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, an aryloxy group, or a monovalent heterocyclic group, and these groups optionally have a substituent.
- a plurality of R 1a may be the same or different.
- the combination of Y 1a and Y 2a is preferably a combination of Y 1a being an iodine atom and Y 2a being a bromine atom.
- R 1a is preferably an alkyl group, a cycloalkyl group or an aryl group, more preferably an alkyl group or a cycloalkyl group, still more preferably an alkyl group, and these groups may have a substituent. Good.
- the group represented by R 1a may have a substituent.
- the substituent is preferably an alkyl group, a cycloalkyl group, or an aryl group.
- compound (6-1-) a compound represented by the formula (6-1-3) (hereinafter referred to as “compound (6-1-)” is obtained by a coupling reaction between the compound (6-1-2) and a predetermined amine compound. 3) ”) is obtained.
- the compound (6-1-3) is subjected to a reaction such as a bromination reaction to convert a hydrogen atom directly bonded to a carbon atom to a group selected from the substituent group A.
- 6-1-4 (hereinafter referred to as “compound (6-1-4)”) is obtained.
- Z C1 and Z C2 directly bonded to the carbon atom of the compound (6-1-4) can be converted into a group selected from the substituent group B using a known reaction.
- composition of the present invention is at least one selected from the group consisting of the polymer compound of the present invention, a hole transport material, a hole injection material, an electron transport material, an electron injection material, a light emitting material, an antioxidant, and a solvent. Material.
- composition containing the polymer compound of the present invention and a solvent (hereinafter sometimes referred to as “ink”) is suitable for production of a light-emitting element using a printing method such as an inkjet printing method or a nozzle printing method.
- the viscosity of the ink may be adjusted depending on the type of printing method, but when applying a printing method in which a solution such as an ink jet printing method passes through a discharge device, in order to prevent clogging and flight bending at the time of discharge.
- the pressure is preferably 1 to 20 mPa ⁇ s at 25 ° C.
- the solvent contained in the ink is preferably a solvent that can dissolve or uniformly disperse the solid content in the ink.
- the solvent include chlorine solvents such as 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene and o-dichlorobenzene; ether solvents such as tetrahydrofuran, dioxane, anisole and 4-methylanisole; toluene, Aromatic hydrocarbon solvents such as xylene, mesitylene, ethylbenzene, n-hexylbenzene, cyclohexylbenzene; cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-octane, n-nonane, n- Aliphatic hydrocarbon solvents such as decane, n-dodecane, and bicyclohexyl;
- the blending amount of the solvent is usually 1000 to 100,000 parts by weight, preferably 2000 to 20000 parts by weight with respect to 100 parts by weight of the polymer compound of the present invention.
- the hole transport material is classified into a low molecular compound and a high molecular compound, and a high molecular compound is preferable, and a high molecular compound having a crosslinking group is more preferable.
- polymer compound examples include polyvinyl carbazole and derivatives thereof; polyarylene having an aromatic amine structure in the side chain or main chain and derivatives thereof.
- the polymer compound may be a compound to which an electron accepting site is bonded. Examples of the electron accepting site include fullerene, tetrafluorotetracyanoquinodimethane, tetracyanoethylene, trinitrofluorenone, and fullerene is preferable.
- the compounding amount of the hole transport material is usually 1 to 400 parts by weight, preferably 5 to 150 parts by weight with respect to 100 parts by weight of the polymer compound of the present invention.
- the hole transport material may be used alone or in combination of two or more.
- Electron transport materials are classified into low molecular compounds and high molecular compounds.
- the electron transport material may have a crosslinking group.
- Examples of the low molecular weight compound include a metal complex having 8-hydroxyquinoline as a ligand, oxadiazole, anthraquinodimethane, benzoquinone, naphthoquinone, anthraquinone, tetracyanoanthraquinodimethane, fluorenone, diphenyldicyanoethylene, and , Diphenoquinone, and derivatives thereof.
- polymer compound examples include polyphenylene, polyfluorene, and derivatives thereof.
- the polymer compound may be doped with a metal.
- the compounding amount of the electron transport material is usually 1 to 400 parts by weight, preferably 5 to 150 parts by weight with respect to 100 parts by weight of the polymer compound of the present invention.
- the electron transport material may be used alone or in combination of two or more.
- the hole injection material and the electron injection material are each classified into a low molecular compound and a high molecular compound.
- the hole injection material and the electron injection material may have a crosslinking group.
- low molecular weight compounds include metal phthalocyanines such as copper phthalocyanine; carbon; metal oxides such as molybdenum and tungsten; and metal fluorides such as lithium fluoride, sodium fluoride, cesium fluoride, and potassium fluoride.
- metal phthalocyanines such as copper phthalocyanine
- carbon such as carbon
- metal oxides such as molybdenum and tungsten
- metal fluorides such as lithium fluoride, sodium fluoride, cesium fluoride, and potassium fluoride.
- polymer compound examples include polyaniline, polythiophene, polypyrrole, polyphenylene vinylene, polythienylene vinylene, polyquinoline, and polyquinoxaline, and derivatives thereof; polymers containing an aromatic amine structure in the main chain or side chain, etc.
- the conductive polymer is mentioned.
- the compounding amounts of the hole injection material and the electron injection material are each usually 1 to 400 parts by weight, preferably 5 to 150 parts per 100 parts by weight of the polymer compound of the present invention. Parts by weight.
- the hole injection material and the electron injection material may be used alone or in combination of two or more.
- the electrical conductivity of the conductive polymer is preferably 1 ⁇ 10 ⁇ 5 S / cm to 1 ⁇ 10 3 S / cm.
- the conductive polymer can be doped with an appropriate amount of ions.
- the kind of ions to be doped is an anion for a hole injection material and a cation for an electron injection material.
- the anion include polystyrene sulfonate ion, alkylbenzene sulfonate ion, and camphor sulfonate ion.
- the cation include lithium ion, sodium ion, potassium ion, and tetrabutylammonium ion.
- the ion to be doped may be one kind or two or more kinds.
- Luminescent materials are classified into low molecular compounds and high molecular compounds.
- the light emitting material may have a crosslinking group.
- low molecular weight compound examples include naphthalene and derivatives thereof, anthracene and derivatives thereof, perylene and derivatives thereof, and triplet light-emitting complexes having iridium, platinum, or europium as a central metal.
- Examples of the polymer compound include a phenylene group, a naphthalenediyl group, a fluorenediyl group, a phenanthrene diyl group, a dihydrophenanthrene diyl group, a group represented by the formula (X), a carbazole diyl group, a phenoxazine diyl group, and a phenothiazine diyl.
- the light emitting material may contain a low molecular compound and a high molecular compound, and preferably contains a triplet light emitting complex and a high molecular compound.
- the triplet light-emitting complex is preferably an iridium complex such as a metal complex represented by the formulas Ir-1 to Ir-3.
- R D1 to R D8 and R D11 to R D20 are each independently a hydrogen atom, alkyl group, cycloalkyl group, alkoxy group, cycloalkoxy group, aryl group, aryloxy group, monovalent heterocyclic group or halogen atom These groups may have a substituent. When a plurality of R D1 to R D8 and R D11 to R D20 are present, they may be the same or different.
- a D1 ——A D2 — represents an anionic bidentate ligand, and A D1 and A D2 each independently represent a carbon atom, an oxygen atom or a nitrogen atom bonded to an iridium atom, The atom may be an atom constituting a ring. When a plurality of -A D1 --- A D2 -are present, they may be the same or different. n D1 represents 1, 2 or 3, and n D2 represents 1 or 2. ]
- At least one of R D1 to R D8 is preferably a group represented by the formula (DA).
- m DA1 , m DA2 and m DA3 each independently represent an integer of 0 or more.
- GDA represents a nitrogen atom, an aromatic hydrocarbon group or a heterocyclic group, and these groups optionally have a substituent.
- Ar DA1 , Ar DA2 and Ar DA3 each independently represent an arylene group or a divalent heterocyclic group, and these groups optionally have a substituent.
- TDA represents an aryl group or a monovalent heterocyclic group, and these groups optionally have a substituent.
- the plurality of TDAs may be the same or different.
- m DA1 , m DA2 and m DA3 are usually an integer of 10 or less, preferably an integer of 5 or less, more preferably 0 or 1.
- m DA1 , m DA2 and m DA3 are preferably the same integer.
- G DA is preferably a group represented by the formula (GDA-11) ⁇ (GDA -15), these groups may have a substituent.
- R DA represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may further have a substituent.
- RDA represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may further have a substituent.
- RDA represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an aryl group, or a monovalent heterocyclic group, and these groups may further have a substituent.
- RDA represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group, an
- R DA is preferably a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group or a cycloalkoxy group, more preferably a hydrogen atom, an alkyl group or a cycloalkyl group, and these groups have a substituent. May be.
- Ar DA1 , Ar DA2 and Ar DA3 are preferably groups represented by the formulas (ArDA-1) to (ArDA-3).
- R DA represents the same meaning as described above.
- R DB represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a monovalent heterocyclic group, and these groups may have a substituent. When there are a plurality of RDBs , they may be the same or different. ]
- T DA is preferably a group represented by the formula (TDA-1) ⁇ (TDA -3).
- R DA and R DB represent the same meaning as described above.
- R D11 to R D20 is a group represented by the formula (DA).
- R D1 to R D8 and R D11 to R D20 is a group represented by the formula (DA).
- the group represented by the formula (D-A) is preferably a group represented by the formulas (D-A1) to (D-A3).
- R p1 , R p2 and R p3 each independently represents an alkyl group, a cycloalkyl group, an alkoxy group, a cycloalkoxy group or a halogen atom.
- R p1 and R p2 may be the same or different.
- np1 represents an integer of 0 to 5
- np2 represents an integer of 0 to 3
- np3 represents 0 or 1.
- a plurality of np1 may be the same or different.
- Np1 is preferably 0 or 1, more preferably 1.
- np2 is preferably 0 or 1, more preferably 0.
- np3 is preferably 0.
- R p1 , R p2 and R p3 are preferably an alkyl group or a cycloalkyl group.
- Examples of the anionic bidentate ligand represented by —A D1 ——A D2 — include a ligand represented by the following formula.
- the metal complex represented by the formula Ir-1 is preferably a metal complex represented by the formulas Ir-11 to Ir-13.
- the metal complex represented by the formula Ir-2 is preferably a metal complex represented by the formula Ir-21.
- the metal complex represented by the formula Ir-3 is preferably a metal complex represented by the formula Ir-31 to Ir-33.
- D represents a group represented by the formula (DA).
- n D2 represents 1 or 2.
- triplet light-emitting complex examples include the metal complexes shown below.
- the content of the light emitting material is usually 0.1 to 400 parts by weight with respect to 100 parts by weight of the polymer compound of the present invention.
- the antioxidant may be any compound that is soluble in the same solvent as the polymer compound of the present invention and does not inhibit light emission and charge transport. Examples thereof include phenol-based antioxidants and phosphorus-based antioxidants.
- the blending amount of the antioxidant is usually 0.001 to 10 parts by weight with respect to 100 parts by weight of the polymer compound of the present invention.
- Antioxidants may be used alone or in combination of two or more.
- the membrane contains the polymer compound of the present invention.
- the film includes an insolubilized film obtained by insolubilizing the polymer compound of the present invention in a solvent by crosslinking.
- the insolubilized film is a film obtained by crosslinking the polymer compound of the present invention by an external stimulus such as heating or light irradiation. Since the insolubilized film is substantially insoluble in a solvent, the insolubilized film can be suitably used for stacking light emitting elements.
- the heating temperature for crosslinking the film is usually 25 to 300 ° C., and the light emission efficiency is improved. Therefore, the heating temperature is preferably 50 to 250 ° C., more preferably 150 to 200 ° C.
- the type of light used for light irradiation for crosslinking the film is, for example, ultraviolet light, near ultraviolet light, or visible light.
- the film is suitable as a light emitting layer in the light emitting element.
- the film is made of ink, for example, spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, spray coating method, screen printing method. , Flexographic printing, offset printing, ink jet printing, capillary coating, and nozzle coating.
- the thickness of the film is usually 1 nm to 10 ⁇ m.
- the light emitting device of the present invention is a light emitting device such as organic electroluminescence obtained using the polymer compound of the present invention.
- the polymer compound of the present invention has a crosslinking group, for example, the light-emitting device containing the polymer compound of the present invention, the polymer compound of the present invention is intramolecular, intermolecular, or both.
- the polymer compound of the present invention is a crosslinked light-emitting device and does not have a crosslinking group, for example, the light-emitting device contains the polymer compound of the present invention.
- the light emitting element of this invention it has an electrode which consists of an anode and a cathode, and a layer obtained using the polymer compound of this invention provided between this electrode, for example.
- the layer obtained by using the polymer compound of the present invention is usually one or more of a light emitting layer, a hole transport layer, a hole injection layer, an electron transport layer, and an electron injection layer, preferably a light emitting layer. It is.
- Each of these layers includes a light emitting material, a hole transport material, a hole injection material, an electron transport material, and an electron injection material.
- Each of these layers is the same as the above-described film production, in which a light-emitting material, a hole transport material, a hole injection material, an electron transport material, and an electron injection material are dissolved in the above-described solvent and ink is prepared and used. It can be formed using a method.
- the light emitting element has a light emitting layer between an anode and a cathode.
- the light-emitting element of the present invention preferably has at least one of a hole injection layer and a hole transport layer between the anode and the light-emitting layer from the viewpoint of hole injection and hole transport. From the viewpoint of injection property and electron transport property, it is preferable to have at least one of an electron injection layer and an electron transport layer between the cathode and the light emitting layer.
- the above-described hole transport material, electron transport material, and light emission respectively. Examples include materials, hole injection materials, and electron injection materials.
- the material of the hole transport layer, the material of the electron transport layer, and the material of the light emitting layer are used when forming the hole transport layer, the electron transport layer, and the layer adjacent to the light emitting layer, respectively, in the production of the light emitting device.
- the material When dissolved in a solvent, it is preferable that the material has a crosslinking group in order to avoid dissolution of the material in the solvent. After forming each layer using a material having a crosslinking group, the layer can be insolubilized by crosslinking the crosslinking group.
- each layer such as a light emitting layer, a hole transport layer, an electron transport layer, a hole injection layer, and an electron injection layer
- a low molecular compound for example, vacuum deposition from powder
- a method using a film formation from a solution or a molten state may be used.
- the order, number, and thickness of the layers to be laminated may be adjusted in consideration of light emission efficiency and element lifetime.
- the substrate in the light-emitting element may be any substrate that can form electrodes and does not change chemically when the organic layer is formed.
- the substrate is made of a material such as glass, plastic, or silicon.
- the electrode farthest from the substrate is preferably transparent or translucent.
- Examples of the material for the anode include conductive metal oxides and translucent metals, preferably indium oxide, zinc oxide, tin oxide; indium tin oxide (ITO), indium zinc oxide, etc.
- conductive metal oxides and translucent metals preferably indium oxide, zinc oxide, tin oxide; indium tin oxide (ITO), indium zinc oxide, etc.
- Examples of the material of the cathode include metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, zinc, indium; two or more kinds of alloys thereof; Alloys of one or more species with one or more of silver, copper, manganese, titanium, cobalt, nickel, tungsten, tin; and graphite and graphite intercalation compounds.
- the alloy include a magnesium-silver alloy, a magnesium-indium alloy, a magnesium-aluminum alloy, an indium-silver alloy, a lithium-aluminum alloy, a lithium-magnesium alloy, a lithium-indium alloy, and a calcium-aluminum alloy.
- Each of the anode and the cathode may have a laminated structure of two or more layers.
- the planar anode and the cathode may be arranged so as to overlap each other.
- a method of forming an anode or a cathode, or both electrodes in a pattern is a method.
- a segment type display device capable of displaying numbers, characters, and the like can be obtained.
- both the anode and the cathode may be formed in stripes and arranged orthogonally. Partial color display and multicolor display are possible by a method of separately coating a plurality of types of polymer compounds having different emission colors, or a method using a color filter or a fluorescence conversion filter.
- the dot matrix display device can be driven passively, or can be driven active in combination with a TFT or the like. These display devices can be used for displays of computers, televisions, portable terminals and the like.
- the planar light emitting element can be suitably used as a planar light source for backlight of a liquid crystal display device or a planar illumination light source. If a flexible substrate is used, it can also be used as a curved light source and a display device.
- the polystyrene-equivalent number average molecular weight (Mn) and polystyrene-equivalent weight average molecular weight (Mw) of the polymer compound are size exclusion chromatography (SEC) (manufactured by Shimadzu Corporation, trade name: LC-10Avp). Determined by The SEC measurement conditions are as follows.
- the polymer compound to be measured was dissolved in THF at a concentration of about 0.05% by weight, and 10 ⁇ L was injected into SEC. THF was used as the mobile phase of SEC and flowed at a flow rate of 2.0 mL / min.
- PLgel MIXED-B manufactured by Polymer Laboratories
- a UV-VIS detector manufactured by Shimadzu Corporation, trade name: SPD-10Avp was used as the detector.
- LC-MS Liquid chromatograph mass spectrometry
- NMR measurement was performed by the following method. Dissolve 5-10 mg of sample in about 0.5 mL of deuterated chloroform (CDCl 3 ), deuterated tetrahydrofuran (THF-d 8 ), deuterated methylene chloride (CD 2 Cl 2 ) or deuterated dimethyl sulfoxide ((CD 3 ) 2 SO) And measured using an NMR apparatus (trade name: INOVA300, manufactured by Agilent).
- HPLC high performance liquid chromatography
- Kaseisorb LC-ODS 2000 manufactured by Tokyo Chemical Industry
- ODS column having equivalent performance was used as the column.
- a photodiode array detector manufactured by Shimadzu Corporation, trade name: SPD-M20A was used as the detector.
- the obtained reaction liquid was cooled to 0 ° C., aqueous hydrochloric acid (1 mol / L) was added, and the mixture was stirred at 0 ° C. for 30 minutes. Then, it filtered with the filter which pre-coated Celite. The obtained filtrate and the washing solution obtained by washing the obtained residue with toluene were combined, the aqueous layer was separated, and the obtained organic layer was washed with water. The obtained organic layer was concentrated to obtain a crude product. The obtained crude product was washed with isopropanol and then recrystallized using a mixed solvent of isopropanol and toluene to obtain 6.9 g of Compound 6 as a white solid.
- Compound 7 was synthesized according to the method described in JP2011-174061A.
- Compound 8 was synthesized according to the method described in JP 2006-257094 A.
- Step 1 After the inside of the reaction vessel is filled with an inert gas atmosphere, Compound 7 (1.0811 g), Compound 8 (0.7666 g), Compound 4 (0.1111 g), dichlorobis (tris-o-methoxyphenylphosphine) Palladium (1.3 mg) and toluene (40 mL) were added and heated to 105 ° C. (Step 2) Thereafter, a 20 wt% tetraethylammonium hydroxide aqueous solution (5 mL) was added dropwise thereto and refluxed for 5 hours.
- Step 3 Thereafter, phenylboronic acid (36.6 mg) and dichlorobis (tris-o-methoxyphenylphosphine) palladium (1.3 mg) were added thereto, and the mixture was refluxed for 14 hours.
- Step 4 Thereafter, an aqueous sodium diethyldithiacarbamate solution was added thereto, and the mixture was stirred at 80 ° C. for 2 hours. After cooling, the reaction solution was washed twice with water, twice with a 3 wt% aqueous acetic acid solution and twice with water, and the resulting solution was added dropwise to methanol.
- the obtained precipitate was dissolved in toluene and purified by passing through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise to methanol and stirred, and then the resulting precipitate was collected by filtration and dried to obtain 1.12 g of polymer compound 1.
- the Mn of the polymer compound 1 was 1.1 ⁇ 10 5 and the Mw was 2.7 ⁇ 10 5 .
- the theoretical value obtained from the amount of the raw material used for polymer compound 1 is 50: a structural unit derived from compound 7, a structural unit derived from compound 8, and a structural unit derived from compound 4. It is a copolymer composed of a 45: 5 molar ratio.
- Step 1 in the synthesis of the polymer compound 1 was “compound 7 (1.0811 g), compound 8 (0.7666 g), compound 6 (0.0976 g) after making the inside of the reaction vessel an inert gas atmosphere, By adding dichlorobis (triphenylphosphine) palladium (1.3 mg) and toluene (40 ml) and heating to 105 ° C. " 1.09 g was obtained.
- the Mn of the polymer compound 2 was 1.0 ⁇ 10 5 and the Mw was 2.8 ⁇ 10 5 .
- the theoretical value obtained from the amount of the raw material used for polymer compound 2 is 50: a structural unit derived from compound 7, a structural unit derived from compound 8, and a structural unit derived from compound 6. It is a copolymer composed of a 45: 5 molar ratio.
- Compound 9 was synthesized according to the method described in JP2011-174062.
- Compound 10 was synthesized according to the method described in JP-T-2007-512249.
- Compound 11 was synthesized according to the method described in JP-A-2008-106241.
- Step 1 in the synthesis of the polymer compound 1 was “compound 9 (2.7027 g), compound 8 (0.2459 g), compound 10 (1.6509 g) after setting the inside of the reaction vessel to an inert gas atmosphere, Compound 11 (0.2409 g), dichlorobis (triphenylphosphine) palladium (2.1 mg) and toluene (62 ml) were mixed and heated to 105 ° C. ”
- Step 2 in the synthesis of the polymer compound 1 was “After that, 20 wt% tetraethylammonium hydroxide aqueous solution (10 mL) was dropped therein and refluxed for 4.5 hours”.
- Step 3 in the synthesis of the polymer compound 1, “phenylboronic acid (36.6 mg) and dichlorobis (triphenylphosphine)” palladium (2.1 mg) was added thereto, and the mixture was refluxed for 14 hours.
- the polymer compound 3 was obtained in the same manner as in the synthesis of the polymer compound 1 except that 3.12 g of the polymer compound 3 was obtained.
- the Mn of the polymer compound 3 was 7.8 ⁇ 10 4 , and the Mw was 2.6 ⁇ 10 5 .
- the polymer compound 3 is derived from the structural unit derived from the compound 9, the structural unit derived from the compound 8, the structural unit derived from the compound 10, and the compound 11.
- the derived structural unit is a copolymer composed of a molar ratio of 50: 12.5: 30: 7.5.
- Example D1 Production and Evaluation of Light-Emitting Element D1 An anode was formed by attaching an ITO film with a thickness of 45 nm to a glass substrate by a sputtering method. A polythiophene / sulfonic acid-based hole injecting agent (trade name: AQ-1200, manufactured by Spectronics Co., Ltd.) was formed on the anode to a thickness of 35 nm by a spin coating method. A hole injection layer was formed by heating at 170 ° C. for 15 minutes.
- a polythiophene / sulfonic acid-based hole injecting agent (trade name: AQ-1200, manufactured by Spectronics Co., Ltd.) was formed on the anode to a thickness of 35 nm by a spin coating method.
- a hole injection layer was formed by heating at 170 ° C. for 15 minutes.
- the polymer compound 3 was dissolved in xylene at a concentration of 0.7% by weight to prepare a xylene solution. Using this xylene solution, a film having a thickness of 20 nm was formed on the hole injection layer by spin coating, and heated on a hot plate at 180 ° C. for 60 minutes in a nitrogen gas atmosphere to thereby form a hole transport layer. Formed.
- Polymeric compound 1 was dissolved in xylene at a concentration of 1.2% by weight to prepare a xylene solution. Using this xylene solution, a film having a thickness of 60 nm was formed on the hole transport layer by spin coating, and a light emitting layer was formed by heating at 150 ° C. for 10 minutes in a nitrogen gas atmosphere.
- the substrate on which the light emitting layer is formed is placed in a vapor deposition machine, and the pressure is reduced to 1.0 ⁇ 10 ⁇ 4 Pa or less, and then, as a cathode, sodium fluoride is about 4 nm on the light emitting layer, and then aluminum is formed thereon. About 80 nm was deposited. Then, the light emitting element D1 was produced by sealing using a glass substrate.
- the light emission efficiency at 1000 cd / m 2 is 4.3 cd / A
- the light emission spectrum peak wavelength is 450 nm
- the CIE chromaticity coordinates (x, y) (0. 16, 0.12).
- Example CD1 Production and Evaluation of Light-Emitting Element CD1
- a light-emitting element CD1 was produced in the same manner as in Example D1, except that polymer compound 2 was used instead of polymer compound 1 in Example D1.
- the light emission efficiency at 1000 cd / m 2 is 3.8 cd / A
- the light emission spectrum peak wavelength is 455 nm
- the CIE chromaticity coordinates (x, y) (0. 15, 0.13).
- Example 1 and Example 4 Comparison of Example 1 and Example 4 with Comparative Example 2 and Comparative Example 3 showed that the production method of the present invention is a production method with excellent yield.
- the high molecular compound useful for manufacture of the light emitting element which is excellent in luminous efficiency can be provided.
- the compound useful for manufacture of this high molecular compound can be provided.
- a composition containing the polymer compound and a light emitting device obtained using the polymer compound can be provided.
- a method for producing an indolocarbazole compound, which is excellent in reaction rate can be provided.
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Abstract
Description
また、本発明は、インドロカルバゾール化合物の製造方法であって、収率に優れる製造方法を提供することを目的とする。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R1とR2、R3とR4、R5とR6、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
RAおよびRBは、それぞれ独立に、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。]
[2]前記式(1)で表される構成単位が、下記式(1-1)で表される構成単位である、[1]に記載の高分子化合物。
R1、R2、R3、R4、R5、R6、R7およびR8は、前記と同じ意味を表す。
R9、R10、R11、R12、R13、R14、Ra、Rb、RcおよびRdは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R9とR10、R10とR11、R12とR13、R13とR14は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
[3]前記Ra、Rb、RcおよびRdが、置換基を有していてもよいアルキル基である、[2]に記載の高分子化合物。
[4]前記式(Y)で表される構成単位が、下記式(Y-2)で表される構成単位である、[1]~[3]のいずれかに記載の高分子化合物。
RY1は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY1は同一でも異なっていてもよく、隣接するRY1同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
XY1は、-C(RY2)2-で表される基、-C(RY2)=C(RY2)-で表される基または-C(RY2)2-C(RY2)2-で表される基を表す。RY2は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY2は、同一でも異なっていてもよく、RY2同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
[5]前記式(Y)で示される構成単位が、下記式(Y-5)、(Y-6)または(Y-7)で表される構成単位である、[1]~[3]のいずれかに記載の高分子化合物。
RY1は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY1は同一でも異なっていてもよく、隣接するRY1同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
RY4は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。]
[6]更に、下記式(X)で表される構成単位を含む、[1]~[5]のいずれかに記載の高分子化合物。
aX1およびaX2は、それぞれ独立に、0以上の整数を表す。
ArX1およびArX3は、それぞれ独立に、アリーレン基または2価の複素環基を表し、これらの基は置換基を有していてもよい。
ArX2およびArX4は、それぞれ独立に、アリーレン基、2価の複素環基、または、少なくとも1種のアリーレン基と少なくとも1種の2価の複素環基とが直接結合した2価の基を表し、これらの基は置換基を有していてもよい。
RX1、RX2およびRX3は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。]
[7]前記式(1)で表される構成単位の含有量が、高分子化合物に含まれる構成単位の合計含有量に対して、0.1~50モル%である、[1]~[6]のいずれかに記載の高分子化合物。
[8]下記式(M-1-2)で表される化合物。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R1とR2、R3とR4、R5とR6、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
R9、R10、R11、R12、R13およびR14は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R9とR10、R10とR11、R12とR13、R13とR14は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
Ra’、Rb’、Rc’およびRd’は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。
ZC1およびZC2は、それぞれ独立に、下記置換基A群および置換基B群からなる群から選ばれる基を表す。
<置換基A群>
水素原子、塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2RC1(式中、RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。)で表される基。
<置換基B群>
-B(ORC2)2(式中、RC2は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC2は同一でも異なっていてもよく、互いに結合して、それぞれが結合する酸素原子と共に環構造を形成していてもよい。)で表される基;
-BF3Q'(式中、Q'は、Li、Na、K、RbまたはCsを表す。)で表される基;
-MgY'(式中、Y'は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;
-ZnY''(式中、Y''は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;および、
-Sn(RC3)3(式中、RC3は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC3は同一でも異なっていてもよく、互いに結合して、それぞれが結合するスズ原子と共に環構造を形成していてもよい。)で表される基。]
[9][1]~[7]のいずれかに記載の高分子化合物と、
正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、発光材料、酸化防止剤および溶媒からなる群より選ばれる少なくとも1種の材料を含有する組成物。
[10][1]~[7]のいずれか一項に記載の高分子化合物を用いて得られる発光素子。
[11]ホスフィン配位子を有する遷移金属錯体、塩基および溶媒の存在下において、
下記式(Z)で表される化合物と、下記式(2)で表される化合物とを、アミノ化反応させる工程を含む、
下記式(M-1’)で表される化合物の製造方法。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。
R15およびR16は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基もしくは1価の複素環基、または、上記置換基A群および置換基B群からなる群から選ばれる基を表し、これらの基は置換基を有していてもよい。
R1とR2、R2とR15、R15とR3、R3とR4、R5とR6、R6とR16、R16とR7、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
Yaは、塩素原子、臭素原子、ヨウ素原子または-O-S(=O)2RC1を表す。RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するYaは、同一でも異なっていてもよい。]
[12]前記式(M-1’)で表される化合物が、下記式(M-1’-1)で表される化合物である、[11]に記載の化合物の製造方法。
R1、R2、R3、R4、R5、R6、R7、R8、R15およびR16は、前記と同じ意味を表す。
R9、R10、R11、R12、R13、R14、Ra、Rb、RcおよびRdは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R9とR10、R10とR11、R12とR13、R13とR14は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。]
[13]前記Ra、Rb、RcおよびRdが、置換基を有していてもよいアルキル基である、[12]に記載の化合物の製造方法。
また、本発明によれば、インドロカルバゾール化合物の製造方法であって、収率に優れる製造方法を提供することができる。さらに、本発明の好ましい実施形態によれば、インドロカルバゾール化合物の製造方法であって、反応速度に優れる製造方法を提供することができる。
本明細書で共通して用いられる用語は、特記しない限り、以下の意味である。
アルキル基は、置換基を有していてもよく、例えば、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、tert-ブチル基、ペンチル基、イソアミル基、2-エチルブチル基、ヘキシル基、ヘプチル基、オクチル基、2-エチルヘキシル基、3-プロピルヘプチル基、デシル基、3,7-ジメチルオクチル基、2-エチルオクチル基、2-ヘキシルデシル基、ドデシル基、および、これらの基における水素原子が、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基が挙げられ、例えば、トリフルオロメチル基、ペンタフルオロエチル基、パーフルオロブチル基、パーフルオロヘキシル基、パーフルオロオクチル基、3-フェニルプロピル基、3-(4-メチルフェニル)プロピル基、3-(3,5-ジ-ヘキシルフェニル)プロピル基、6-エチルオキシヘキシル基が挙げられる。
「シクロアルキル基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~50であり、好ましくは3~30であり、より好ましくは4~20である。
シクロアルキル基は、置換基を有していてもよく、例えば、シクロヘキシル基、シクロヘキシルメチル基、シクロヘキシルエチル基が挙げられる。
アリール基は、置換基を有していてもよく、例えば、フェニル基、1-ナフチル基、2-ナフチル基、1-アントラセニル基、2-アントラセニル基、9-アントラセニル基、1-ピレニル基、2-ピレニル基、4-ピレニル基、2-フルオレニル基、3-フルオレニル基、4-フルオレニル基、2-フェニルフェニル基、3-フェニルフェニル基、4-フェニルフェニル基、および、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基が挙げられる。
アルコキシ基は、置換基を有していてもよく、例えば、メトキシ基、エトキシ基、プロピルオキシ基、イソプロピルオキシ基、ブチルオキシ基、イソブチルオキシ基、tert-ブチルオキシ基、ペンチルオキシ基、ヘキシルオキシ基、ヘプチルオキシ基、オクチルオキシ基、2-エチルヘキシルオキシ基、ノニルオキシ基、デシルオキシ基、3,7-ジメチルオクチルオキシ基、ラウリルオキシ基、および、これらの基における水素原子が、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、フッ素原子等で置換された基が挙げられる。
「シクロアルコキシ基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~40であり、好ましくは4~10である。
シクロアルコキシ基は、置換基を有していてもよく、例えば、シクロヘキシルオキシ基が挙げられる。
アリールオキシ基は、置換基を有していてもよく、例えば、フェノキシ基、1-ナフチルオキシ基、2-ナフチルオキシ基、1-アントラセニルオキシ基、9-アントラセニルオキシ基、1-ピレニルオキシ基、および、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、フッ素原子等で置換された基が挙げられる。
「芳香族複素環式化合物」は、オキサジアゾール、チアジアゾール、チアゾール、オキサゾール、チオフェン、ピロール、ホスホール、フラン、ピリジン、ピラジン、ピリミジン、トリアジン、ピリダジン、キノリン、イソキノリン、カルバゾール、ジベンゾホスホール等の複素環自体が芳香族性を示す化合物、および、フェノキサジン、フェノチアジン、ジベンゾボロール、ジベンゾシロール、ベンゾピラン等の複素環自体は芳香族性を示さなくとも、複素環に芳香環が縮環されている化合物を意味する。
1価の複素環基は、置換基を有していてもよく、例えば、チエニル基、ピロリル基、フリル基、ピリジル基、ピペリジニル基、キノリニル基、イソキノリニル基、ピリミジニル基、トリアジニル基、および、これらの基における水素原子が、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基等で置換された基が挙げられる。
置換アミノ基としては、例えば、ジアルキルアミノ基、ジシクロアルキルアミノ基およびジアリールアミノ基が挙げられる。
アミノ基としては、例えば、ジメチルアミノ基、ジエチルアミノ基、ジフェニルアミノ基、ビス(4-メチルフェニル)アミノ基、ビス(4-tert-ブチルフェニル)アミノ基、ビス(3,5-ジ-tert-ブチルフェニル)アミノ基が挙げられる。
「シクロアルケニル基」の炭素原子数は、置換基の炭素原子数を含めないで、通常3~30であり、好ましくは4~20である。
アルケニル基およびシクロアルケニル基は、置換基を有していてもよく、例えば、ビニル基、1-プロペニル基、2-プロペニル基、2-ブテニル基、3-ブテニル基、3-ペンテニル基、4-ペンテニル基、1-ヘキシニル基、5-ヘキシニル基、7-オクテニル基、および、これらの基が置換基を有する基が挙げられる。
「シクロアルキニル基」の炭素原子数は、置換基の炭素原子を含めないで、通常4~30であり、好ましくは4~20である。
アルキニル基およびシクロアルキニル基は、置換基を有していてもよく、例えば、エチニル基、1-プロピニル基、2-プロピニル基、2-ブチニル基、3-ブチニル基、3-ペンチニル基、4-ペンチニル基、1-ヘキシニル基、5-ヘキシニル基、および、これらの基が置換基を有する基が挙げられる。
アリーレン基は、置換基を有していてもよく、例えば、フェニレン基、ナフタレンジイル基、アントラセンジイル基、フェナントレンジイル基、ジヒドロフェナントレンジイル基、ナフタセンジイル基、フルオレンジイル基、ピレンジイル基、ペリレンジイル基、クリセンジイル基、および、これらの基が置換基を有する基が挙げられ、好ましくは式(A-1)~式(A-20)で表される基である。アリーレン基は、これらの基が複数結合した基を含む。
2価の複素環基は、置換基を有していてもよく、例えば、ピリジン、ジアザベンゼン、トリアジン、アザナフタレン、ジアザナフタレン、カルバゾール、ジベンゾフラン、ジベンゾチオフェン、ジベンゾシロール、フェノキサジン、フェノチアジン、アクリジン、ジヒドロアクリジン、フラン、チオフェン、アゾール、ジアゾール、トリアゾールから、環を構成する炭素原子またはヘテロ原子に直接結合している水素原子のうち2個の水素原子を除いた2価の基が挙げられ、好ましくは式(AA-1)~式(AA-34)で表される基である。2価の複素環基は、これらの基が複数結合した基を含む。
本発明の高分子化合物は、式(1)で表される構成単位と、式(Y)で表される構成単位とを含む高分子化合物である。
RY1は前記と同じ意味を表す。
RY3は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。]
本発明の高分子化合物は、正孔輸送性が優れるので、更に、式(X)で表される構成単位を含んでいてもよい。
[表中、p、q、r、s、tおよびuは、各構成単位のモル比率を表す。p+q+r+s+t+u=100であり、かつ、70≦p+q+r+s+t≦100である。その他の構成単位とは、式(1)、式(Y-1)~式(Y-7)および式(X)で表される構成単位以外の構成単位を意味する。]
次に、本発明の高分子化合物の製造方法について説明する。
R1~R8、RA、RB、ArY1、a1、a2、ArX1~ArX4およびRX1~RX3は、前記と同じ意味を表す。
ZC1~ZC8は、それぞれ独立に、置換基A群および置換基B群からなる群から選ばれる基を表す。]
水素原子、塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2RC1(式中、RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。)で表される基。
-B(ORC2)2(式中、RC2は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC2は同一でも異なっていてもよく、互いに結合して、それぞれが結合する酸素原子と共に環構造を形成していてもよい。)で表される基;
-BF3Q'(式中、Q'は、Li、Na、K、RbまたはCsを表す。)で表される基;
-MgY'(式中、Y'は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;
-ZnY''(式中、Y''は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;および、
-Sn(RC3)3(式中、RC3は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC3は同一でも異なっていてもよく、互いに結合して、それぞれが結合するスズ原子と共に環構造を形成していてもよい。)で表される基。
次に、本発明の高分子化合物の原料モノマーである化合物について説明する。
次に、本発明の化合物の製造方法について説明する。
ホスフィン配位子を有する遷移金属錯体としては、ホスフィン配位子を有するパラジウム錯体、ホスフィン配位子を有するニッケル錯体が挙げられ、本発明の製造方法により得られる化合物の収率がより優れるため、ホスフィン配位子を有するパラジウム錯体であることが好ましい。
本発明の製造方法で用いられる塩基としては、例えば、炭酸ナトリウム、水酸化カリウム、水酸化ナトリウム、炭酸カリウム、炭酸セシウム、リン酸カリウム、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、カリウムtert-ブトキシドが挙げられ、好ましくは、ナトリウムtert-ブトキシドである。
本発明の製造方法で用いられる溶媒は、有機溶媒であることが好ましい。有機溶媒としては、例えば、トルエン、キシレン(o-キシレン、m-キシレン、p-キシレン、および、これらの混合物)、メシチレン、テトラヒドロフラン、1,4-ジオキサン、ジメトキシエタン、N,N-ジメチルアセトアミド、N,N-ジメチルホルムアミドが挙げられる。
本発明の製造方法において、反応温度は、通常0℃~200℃であり、50℃~150℃であることが好ましく、80℃~130℃であることがより好ましい。
本発明の製造方法において、反応時間は、通常0.5~24時間であり、1~12時間であることが好ましく、1~8時間であることがより好ましい。
ZC1およびZC2は、前記と同じ意味を表す。
Y1aおよびY2aは、塩素原子、臭素原子またはヨウ素原子を表す。但し、Y1aはY2aよりも原子番号が大きい原子である。
Y1bは、置換基B群から選ばれる基を表す。
R1aは、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するR1aは、同一でも異なっていてもよい。]
本発明の組成物は、本発明の高分子化合物と、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、発光材料、酸化防止剤および溶媒からなる群から選ばれる少なくとも1種の材料とを含有する。
正孔輸送材料は、低分子化合物と高分子化合物とに分類され、高分子化合物が好ましく、架橋基を有する高分子化合物がより好ましい。
電子輸送材料は、低分子化合物と高分子化合物とに分類される。電子輸送材料は、架橋基を有していてもよい。
正孔注入材料および電子注入材料は、各々、低分子化合物と高分子化合物とに分類される。正孔注入材料および電子注入材料は、架橋基を有していてもよい。
正孔注入材料または電子注入材料が導電性高分子を含む場合、導電性高分子の電気伝導度は、好ましくは、1×10-5S/cm~1×103S/cmである。導電性高分子の電気伝導度をかかる範囲とするために、導電性高分子に適量のイオンをドープすることができる。
発光材料は、低分子化合物と高分子化合物とに分類される。発光材料は、架橋基を有していてもよい。
RD1~RD8およびRD11~RD20は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基、1価の複素環基またはハロゲン原子を表し、これらの基は置換基を有していてもよい。RD1~RD8およびRD11~RD20が複数存在する場合、それらはそれぞれ同一でも異なっていてもよい。
-AD1---AD2-は、アニオン性の2座配位子を表し、AD1およびAD2は、それぞれ独立に、イリジウム原子と結合する炭素原子、酸素原子または窒素原子を表し、これらの原子は環を構成する原子であってもよい。-AD1---AD2-が複数存在する場合、それらは同一でも異なっていてもよい。
nD1は、1、2または3を表し、nD2は、1または2を表す。]
mDA1、mDA2およびmDA3は、それぞれ独立に、0以上の整数を表す。
GDAは、窒素原子、芳香族炭化水素基または複素環基を表し、これらの基は置換基を有していてもよい。
ArDA1、ArDA2およびArDA3は、それぞれ独立に、アリーレン基または2価の複素環基を表し、これらの基は置換基を有していてもよい。ArDA1、ArDA2およびArDA3が複数ある場合、それらはそれぞれ同一でも異なっていてもよい。
TDAは、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数あるTDAは、同一でも異なっていてもよい。]
*、**および***は、各々、ArDA1、ArDA2、ArDA3との結合を表す。
RDAは、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は更に置換基を有していてもよい。RDAが複数ある場合、それらは同一でも異なっていてもよい。]
RDAは前記と同じ意味を表す。
RDBは、水素原子、アルキル基、シクロアルキル基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。RDBが複数ある場合、それらは同一でも異なっていてもよい。]
Rp1、Rp2およびRp3は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基またはハロゲン原子を表す。Rp1およびRp2が複数ある場合、それらはそれぞれ同一であっても異なっていてもよい。
np1は、0~5の整数を表し、np2は0~3の整数を表し、np3は0または1を表す。複数あるnp1は、同一でも異なっていてもよい。]
酸化防止剤は、本発明の高分子化合物と同じ溶媒に可溶であり、発光および電荷輸送を阻害しない化合物であればよく、例えば、フェノール系酸化防止剤、リン系酸化防止剤が挙げられる。
膜は、本発明の高分子化合物を含有する。
本発明の発光素子は、本発明の高分子化合物を用いて得られる有機エレクトロルミネッセンス等の発光素子である。該発光素子は、本発明の高分子化合物が架橋基を有する場合、例えば、本発明の高分子化合物を含む発光素子、本発明の高分子化合物が分子内、分子間、または、それらの両方で架橋した発光素子であり、本発明の高分子化合物が架橋基を有しない場合、例えば、本発明の高分子化合物を含む発光素子である。
本発明の発光素子の構成としては、例えば、陽極および陰極からなる電極と、該電極間に設けられた本発明の高分子化合物を用いて得られる層とを有する。
本発明の高分子化合物を用いて得られる層は、通常、発光層、正孔輸送層、正孔注入層、電子輸送層、電子注入層の1種以上の層であり、好ましくは、発光層である。これらの層は、各々、発光材料、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料を含む。これらの層は、各々、発光材料、正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料を、上述した溶媒に溶解させ、インクを調製して用い、上述した膜の作製と同じ方法を用いて形成することができる。
正孔輸送層、電子輸送層、発光層、正孔注入層、および、電子注入層の材料としては、本発明の高分子化合物の他、各々、上述した正孔輸送材料、電子輸送材料、発光材料、正孔注入材料、および、電子注入材料が挙げられる。
発光素子における基板は、電極を形成することができ、かつ、有機層を形成する際に化学的に変化しない基板であればよく、例えば、ガラス、プラスチック、シリコン等の材料からなる基板である。不透明な基板の場合には、基板から最も遠くにある電極が透明または半透明であることが好ましい。
陽極および陰極は、各々、2層以上の積層構造としてもよい。
発光素子を用いて面状の発光を得るためには、面状の陽極と陰極が重なり合うように配置すればよい。パターン状の発光を得るためには、面状の発光素子の表面にパターン状の窓を設けたマスクを設置する方法、非発光部にしたい層を極端に厚く形成し実質的に非発光とする方法、陽極もしくは陰極、または両方の電極をパターン状に形成する方法がある。これらのいずれかの方法でパターンを形成し、いくつかの電極を独立にON/OFFできるように配置することにより、数字、文字等を表示できるセグメントタイプの表示装置が得られる。ドットマトリックス表示装置とするためには、陽極と陰極を共にストライプ状に形成して直交するように配置すればよい。複数の種類の発光色の異なる高分子化合物を塗り分ける方法、カラーフィルターまたは蛍光変換フィルターを用いる方法により、部分カラー表示、マルチカラー表示が可能となる。ドットマトリックス表示装置は、パッシブ駆動も可能であるし、TFT等と組み合わせてアクティブ駆動も可能である。これらの表示装置は、コンピュータ、テレビ、携帯端末等のディスプレイに用いることができる。面状の発光素子は、液晶表示装置のバックライト用の面状光源、または、面状の照明用光源として好適に用いることができる。フレキシブルな基板を用いれば、曲面状の光源、および、表示装置としても使用できる。
測定する高分子化合物を約0.05重量%の濃度でTHFに溶解させ、SECに10μL注入した。SECの移動相としてTHFを用い、2.0mL/分の流量で流した。カラムとして、PLgel MIXED-B(ポリマーラボラトリーズ製)を用いた。検出器にはUV-VIS検出器(島津製作所製、商品名:SPD-10Avp)を用いた。
測定試料を約2mg/mLの濃度になるようにクロロホルムまたはTHFに溶解させ、LC-MS(アジレントテクノロジー製、商品名:1100LCMSD)に約1μL注入した。LC-MSの移動相には、アセトニトリルおよびTHFの比率を変化させながら用い、0.2mL/分の流量で流した。カラムは、L-column 2 ODS(3μm)(化学物質評価研究機構製、内径:2.1mm、長さ:100mm、粒径3μm)を用いた。
5~10mgの測定試料を約0.5mLの重クロロホルム(CDCl3)、重テトラヒドロフラン(THF-d8)、重塩化メチレン(CD2Cl2)または重ジメチルスルホキシド((CD3)2SO)に溶解させ、NMR装置(Agilent製、商品名:INOVA300)を用いて測定した。
1H-NMR(THF-d8、300MHz):δ(ppm)=1.12(6H、m)、1.57(4H、m)、1.82(4H、m)、1.95(12H、s)、2.80(4H、t)、6.92(2H、d)、7.17(2H、t)、7.25(4H、s)、7.35(2H、t)、7.73(2H、s)、8.20(4H、d).
1H-NMR(THF-d8、300MHz):δ(ppm)=0.95(6H、m)、1.55(4H、m)、1.85(4H、m)、1.93(12H、s)、2.79(4H、t)、6.88(2H、d)、7.27(4H、s)、7.50(2H、d)、7.79(2H、s)、8.46(2H、s).
化合物8は、特開2006-257094号公報に記載の方法に従って合成した。
(工程2)その後、そこに、20重量%水酸化テトラエチルアンモニウム水溶液(5mL)を滴下し、5時間還流させた。
(工程3)その後、そこに、フェニルボロン酸(36.6mg)およびジクロロビス(トリス-o-メトキシフェニルホスフィン)パラジウム(1.3mg)を加え、14時間還流させた。
(工程4)その後、そこに、ジエチルジチアカルバミン酸ナトリウム水溶液を加え、80℃で2時間撹拌した。冷却後、反応液を、水で2回、3重量%酢酸水溶液で2回、水で2回洗浄し、得られた溶液をメタノールに滴下した。得られた沈殿物をトルエンに溶解させ、アルミナカラム、シリカゲルカラムの順番で通すことにより精製した。得られた溶液をメタノールに滴下し、撹拌した後、得られた沈殿物をろ取し、乾燥させることにより、高分子化合物1を1.12g得た。高分子化合物1のMnは1.1×105であり、Mwは2.7×105であった。
化合物10は、特表2007-512249号公報に記載の方法に従って合成した。
化合物11は、特開2008-106241号公報に記載の方法に従って合成した。
高分子化合物1の合成における(工程2)を、「その後、そこに、20重量%水酸化テトラエチルアンモニウム水溶液(10mL)を滴下し、4.5時間還流させた。」とし、
高分子化合物1の合成における(工程3)を、「その後、そこに、フェニルボロン酸(36.6mg)およびジクロロビス(トリフェニルホスフィン)」パラジウム(2.1mg)を加え、14間還流させた。」とする以外は、高分子化合物1の合成と同様にすることで、高分子化合物3を3.12g得た。高分子化合物3のMnは7.8×104であり、Mwは2.6×105であった。
ガラス基板にスパッタ法により45nmの厚さでITO膜を付けることにより陽極を形成した。該陽極上に、ポリチオフェン・スルホン酸系の正孔注入剤(商品名:AQ-1200、Plectronics社製)をスピンコート法により35nmの厚さで成膜し、大気雰囲気下において、ホットプレート上で170℃、15分間加熱することにより正孔注入層を形成した。
実施例D1における高分子化合物1に代えて、高分子化合物2を用いた以外は実施例D1と同様にして、発光素子CD1を作製した。
また、本発明によれば、インドロカルバゾール化合物の製造方法であって、収率に優れる製造方法を提供することができる。さらに、本発明の好ましい実施形態によれば、インドロカルバゾール化合物の製造方法であって、反応速度に優れる製造方法を提供することができる。
Claims (13)
- 下記式(1)で表される構成単位と、下記式(Y)で表される構成単位とを含む、高分子化合物。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R1とR2、R3とR4、R5とR6、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
RAおよびRBは、それぞれ独立に、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。]
- 前記Ra、Rb、RcおよびRdが、置換基を有していてもよいアルキル基である、請求項2に記載の高分子化合物。
- 前記式(Y)で表される構成単位が、下記式(Y-2)で表される構成単位である、請求項1~3のいずれか一項に記載の高分子化合物。
RY1は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY1は同一でも異なっていてもよく、隣接するRY1同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
XY1は、-C(RY2)2-で表される基、-C(RY2)=C(RY2)-で表される基または-C(RY2)2-C(RY2)2-で表される基を表す。RY2は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY2は、同一でも異なっていてもよく、RY2同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。] - 前記式(Y)で示される構成単位が、下記式(Y-5)、(Y-6)または(Y-7)で表される構成単位である、請求項1~3のいずれか一項に記載の高分子化合物。
RY1は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。複数存在するRY1は同一でも異なっていてもよく、隣接するRY1同士は互いに結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
RY4は、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。] - 更に、下記式(X)で表される構成単位を含む、請求項1~5のいずれか一項に記載の高分子化合物。
aX1およびaX2は、それぞれ独立に、0以上の整数を表す。
ArX1およびArX3は、それぞれ独立に、アリーレン基または2価の複素環基を表し、これらの基は置換基を有していてもよい。
ArX2およびArX4は、それぞれ独立に、アリーレン基、2価の複素環基、または、少なくとも1種のアリーレン基と少なくとも1種の2価の複素環基とが直接結合した2価の基を表し、これらの基は置換基を有していてもよい。
RX1、RX2およびRX3は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アリール基または1価の複素環基を表し、これらの基は置換基を有していてもよい。] - 前記式(1)で表される構成単位の含有量が、高分子化合物に含まれる構成単位の合計含有量に対して、0.1~50モル%である、請求項1~6のいずれか一項に記載の高分子化合物。
- 下記式(M-1-2)で表される化合物。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R1とR2、R3とR4、R5とR6、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
R9、R10、R11、R12、R13およびR14は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R9とR10、R10とR11、R12とR13、R13とR14は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
Ra’、Rb’、Rc’およびRd’は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。
ZC1およびZC2は、それぞれ独立に、下記置換基A群および置換基B群からなる群から選ばれる基を表す。
<置換基A群>
水素原子、塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2RC1(式中、RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。)で表される基。
<置換基B群>
-B(ORC2)2(式中、RC2は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC2は同一でも異なっていてもよく、互いに結合して、それぞれが結合する酸素原子と共に環構造を形成していてもよい。)で表される基;
-BF3Q'(式中、Q'は、Li、Na、K、RbまたはCsを表す。)で表される基;
-MgY'(式中、Y'は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;
-ZnY''(式中、Y''は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;および、
-Sn(RC3)3(式中、RC3は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC3は同一でも異なっていてもよく、互いに結合して、それぞれが結合するスズ原子と共に環構造を形成していてもよい。)で表される基。] - 請求項1~7のいずれか一項に記載の高分子化合物と、
正孔輸送材料、正孔注入材料、電子輸送材料、電子注入材料、発光材料、酸化防止剤および溶媒からなる群より選ばれる少なくとも1種の材料を含有する組成物。 - 請求項1~7のいずれか一項に記載の高分子化合物を用いて得られる発光素子。
- ホスフィン配位子を有する遷移金属錯体、塩基および溶媒の存在下において、
下記式(Z)で表される化合物と、下記式(2)で表される化合物とを、アミノ化反応させる工程を含む、
下記式(M-1’)で表される化合物の製造方法。
R1、R2、R3、R4、R5、R6、R7およびR8は、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。
R15およびR16は、それぞれ独立に、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基もしくは1価の複素環基、または、下記置換基A群および置換基B群からなる群から選ばれる基を表し、これらの基は置換基を有していてもよい。
R1とR2、R2とR15、R15とR3、R3とR4、R5とR6、R6とR16、R16とR7、R7とR8は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。
Yaは、塩素原子、臭素原子、ヨウ素原子または-O-S(=O)2RC1を表す。RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するYaは、同一でも異なっていてもよい。
<置換基A群>
水素原子、塩素原子、臭素原子、ヨウ素原子、-O-S(=O)2RC1(式中、RC1は、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。)で表される基。
<置換基B群>
-B(ORC2)2(式中、RC2は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC2は同一でも異なっていてもよく、互いに結合して、それぞれが結合する酸素原子と共に環構造を形成していてもよい。)で表される基;
-BF3Q'(式中、Q'は、Li、Na、K、RbまたはCsを表す。)で表される基;
-MgY'(式中、Y'は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;
-ZnY''(式中、Y''は、塩素原子、臭素原子またはヨウ素原子を表す。)で表される基;および、
-Sn(RC3)3(式中、RC3は、水素原子、アルキル基、シクロアルキル基またはアリール基を表し、これらの基は置換基を有していてもよい。複数存在するRC3は同一でも異なっていてもよく、互いに結合して、それぞれが結合するスズ原子と共に環構造を形成していてもよい。)で表される基。]
- 前記式(M-1’)で表される化合物が、下記式(M-1’-1)で表される化合物である、請求項11に記載の化合物の製造方法。
R1、R2、R3、R4、R5、R6、R7、R8、R15およびR16は、前記と同じ意味を表す。
R9、R10、R11、R12、R13、R14、Ra、Rb、RcおよびRdは、それぞれ独立に、水素原子、アルキル基、シクロアルキル基、アルコキシ基、シクロアルコキシ基、アリール基、アリールオキシ基または1価の複素環基を表し、これらの基は置換基を有していてもよい。R9とR10、R10とR11、R12とR13、R13とR14は、それぞれ結合して、それぞれが結合する炭素原子と共に環を形成していてもよい。] - 前記Ra、Rb、RcおよびRdが、置換基を有していてもよいアルキル基である、請求項12に記載の化合物の製造方法。
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WO2017154882A1 (ja) * | 2016-03-10 | 2017-09-14 | 住友化学株式会社 | 発光素子 |
CN108148088A (zh) * | 2016-11-21 | 2018-06-12 | 环球展览公司 | 有机电致发光材料和装置 |
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