CN115043736B - 一种利用含氮及保护基化合物制备含氮芳基化合物的方法 - Google Patents
一种利用含氮及保护基化合物制备含氮芳基化合物的方法 Download PDFInfo
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- CN115043736B CN115043736B CN202210813936.0A CN202210813936A CN115043736B CN 115043736 B CN115043736 B CN 115043736B CN 202210813936 A CN202210813936 A CN 202210813936A CN 115043736 B CN115043736 B CN 115043736B
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- -1 nitrogen-containing aryl compound Chemical class 0.000 title claims abstract description 49
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 125000006239 protecting group Chemical group 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- BBOLNFYSRZVALD-UHFFFAOYSA-N 1,2-diiodobenzene Chemical compound IC1=CC=CC=C1I BBOLNFYSRZVALD-UHFFFAOYSA-N 0.000 claims abstract description 9
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical group C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011593 sulfur Substances 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 238000010511 deprotection reaction Methods 0.000 claims abstract description 5
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 5
- 239000011630 iodine Substances 0.000 claims abstract description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003402 intramolecular cyclocondensation reaction Methods 0.000 claims abstract description 4
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 claims abstract description 4
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims abstract description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 5
- 239000012312 sodium hydride Substances 0.000 claims description 5
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims 2
- 101150003085 Pdcl gene Proteins 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 abstract description 4
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 abstract description 4
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 abstract description 4
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 abstract description 4
- CAYQIZIAYYNFCS-UHFFFAOYSA-N (4-chlorophenyl)boronic acid Chemical compound OB(O)C1=CC=C(Cl)C=C1 CAYQIZIAYYNFCS-UHFFFAOYSA-N 0.000 abstract description 2
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 66
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000011734 sodium Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 14
- 238000005160 1H NMR spectroscopy Methods 0.000 description 13
- 238000003818 flash chromatography Methods 0.000 description 12
- 239000012044 organic layer Substances 0.000 description 12
- 239000011541 reaction mixture Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- VUDZSIYXZUYWSC-DBRKOABJSA-N (4r)-1-[(2r,4r,5r)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-hydroxy-1,3-diazinan-2-one Chemical compound FC1(F)[C@H](O)[C@@H](CO)O[C@H]1N1C(=O)N[C@H](O)CC1 VUDZSIYXZUYWSC-DBRKOABJSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 4
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 3
- MWDVCHRYCKXEBY-LBPRGKRZSA-N 3-chloro-n-[2-oxo-2-[[(1s)-1-phenylethyl]amino]ethyl]benzamide Chemical compound N([C@@H](C)C=1C=CC=CC=1)C(=O)CNC(=O)C1=CC=CC(Cl)=C1 MWDVCHRYCKXEBY-LBPRGKRZSA-N 0.000 description 3
- PHKYYUQQYARDIU-UHFFFAOYSA-N 3-methyl-9h-carbazole Chemical compound C1=CC=C2C3=CC(C)=CC=C3NC2=C1 PHKYYUQQYARDIU-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229930014626 natural product Natural products 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- OSHGDRZEZATELX-UHFFFAOYSA-N CC(C)(C)OC(N(C(C=CC=C1)=C1Br)C(C=CC=C1)=C1I)=O Chemical compound CC(C)(C)OC(N(C(C=CC=C1)=C1Br)C(C=CC=C1)=C1I)=O OSHGDRZEZATELX-UHFFFAOYSA-N 0.000 description 2
- UUPREPFVHDWVEH-UHFFFAOYSA-N CC(C)(C)OC(N(C1=CC=C(C)C=C1)C(C=CC=C1)=C1S)=O Chemical compound CC(C)(C)OC(N(C1=CC=C(C)C=C1)C(C=CC=C1)=C1S)=O UUPREPFVHDWVEH-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000005576 amination reaction Methods 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 229910000024 caesium carbonate Inorganic materials 0.000 description 2
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 238000010651 palladium-catalyzed cross coupling reaction Methods 0.000 description 2
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- JINXYLZMLZNPAR-UHFFFAOYSA-N 1-sulfanylidene-1,3-benzothiazole Chemical compound C1=CC=C2S(=S)C=NC2=C1 JINXYLZMLZNPAR-UHFFFAOYSA-N 0.000 description 1
- JENUMEXEVAAAJX-SNVBAGLBSA-N 2-(3,5-dimethyl-1,2,4-triazol-1-yl)-1-[(2r)-2-methyl-4-[2-(trifluoromethyl)-4-[2-(trifluoromethyl)pyrimidin-5-yl]-1,3-thiazol-5-yl]piperazin-1-yl]ethanone Chemical compound C([C@H]1C)N(C2=C(N=C(S2)C(F)(F)F)C=2C=NC(=NC=2)C(F)(F)F)CCN1C(=O)CN1N=C(C)N=C1C JENUMEXEVAAAJX-SNVBAGLBSA-N 0.000 description 1
- IOOWNWLVCOUUEX-WPRPVWTQSA-N 2-[(3r,6s)-2-hydroxy-3-[(2-thiophen-2-ylacetyl)amino]oxaborinan-6-yl]acetic acid Chemical compound OB1O[C@H](CC(O)=O)CC[C@@H]1NC(=O)CC1=CC=CS1 IOOWNWLVCOUUEX-WPRPVWTQSA-N 0.000 description 1
- AOPBDRUWRLBSDB-UHFFFAOYSA-N 2-bromoaniline Chemical compound NC1=CC=CC=C1Br AOPBDRUWRLBSDB-UHFFFAOYSA-N 0.000 description 1
- XBHOUXSGHYZCNH-UHFFFAOYSA-N 2-phenyl-1,3-benzothiazole Chemical compound C1=CC=CC=C1C1=NC2=CC=CC=C2S1 XBHOUXSGHYZCNH-UHFFFAOYSA-N 0.000 description 1
- JHUUPUMBZGWODW-UHFFFAOYSA-N 3,6-dihydro-1,2-dioxine Chemical compound C1OOCC=C1 JHUUPUMBZGWODW-UHFFFAOYSA-N 0.000 description 1
- XRHGYUZYPHTUJZ-UHFFFAOYSA-N 4-chlorobenzoic acid Chemical compound OC(=O)C1=CC=C(Cl)C=C1 XRHGYUZYPHTUJZ-UHFFFAOYSA-N 0.000 description 1
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 1
- QUMCIHKVKQYNPA-RUZDIDTESA-N C1(CCCCC1)CN1[C@@H](C=2N(C=3C=NC(=NC1=3)NC1=C(C=C(C(=O)NC3CCN(CC3)C)C=C1)OC)C(=NN=2)C)CC Chemical compound C1(CCCCC1)CN1[C@@H](C=2N(C=3C=NC(=NC1=3)NC1=C(C=C(C(=O)NC3CCN(CC3)C)C=C1)OC)C(=NN=2)C)CC QUMCIHKVKQYNPA-RUZDIDTESA-N 0.000 description 1
- IKYMGDLCHJJMJL-UHFFFAOYSA-N CC(C)(C)OC(N(C1=CC=C(C)C=C1)C(C=CC=C1)=C1I)=O Chemical compound CC(C)(C)OC(N(C1=CC=C(C)C=C1)C(C=CC=C1)=C1I)=O IKYMGDLCHJJMJL-UHFFFAOYSA-N 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N Pd(PPh3)4 Substances [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- YNHIGQDRGKUECZ-UHFFFAOYSA-L PdCl2(PPh3)2 Substances [Cl-].[Cl-].[Pd+2].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 YNHIGQDRGKUECZ-UHFFFAOYSA-L 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- YLEIFZAVNWDOBM-ZTNXSLBXSA-N ac1l9hc7 Chemical compound C([C@H]12)C[C@@H](C([C@@H](O)CC3)(C)C)[C@@]43C[C@@]14CC[C@@]1(C)[C@@]2(C)C[C@@H]2O[C@]3(O)[C@H](O)C(C)(C)O[C@@H]3[C@@H](C)[C@H]12 YLEIFZAVNWDOBM-ZTNXSLBXSA-N 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229930013930 alkaloid Natural products 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000006254 arylation reaction Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000006696 biosynthetic metabolic pathway Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- KVKFRMCSXWQSNT-UHFFFAOYSA-N n,n'-dimethylethane-1,2-diamine Chemical compound CNCCNC KVKFRMCSXWQSNT-UHFFFAOYSA-N 0.000 description 1
- PHVXTQIROLEEDB-UHFFFAOYSA-N n-[2-(2-chlorophenyl)ethyl]-4-[[3-(2-methylphenyl)piperidin-1-yl]methyl]-n-pyrrolidin-3-ylbenzamide Chemical compound CC1=CC=CC=C1C1CN(CC=2C=CC(=CC=2)C(=O)N(CCC=2C(=CC=CC=2)Cl)C2CNCC2)CCC1 PHVXTQIROLEEDB-UHFFFAOYSA-N 0.000 description 1
- IBVZZAGOGYLVHY-UHFFFAOYSA-N n-benzyl-2-(2-phenylethynyl)aniline Chemical compound C=1C=CC=CC=1CNC1=CC=CC=C1C#CC1=CC=CC=C1 IBVZZAGOGYLVHY-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- PFGVNLZDWRZPJW-OPAMFIHVSA-N otamixaban Chemical compound C([C@@H](C(=O)OC)[C@@H](C)NC(=O)C=1C=CC(=CC=1)C=1C=C[N+]([O-])=CC=1)C1=CC=CC(C(N)=N)=C1 PFGVNLZDWRZPJW-OPAMFIHVSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006268 reductive amination reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- JQSHBVHOMNKWFT-DTORHVGOSA-N varenicline Chemical compound C12=CC3=NC=CN=C3C=C2[C@H]2C[C@@H]1CNC2 JQSHBVHOMNKWFT-DTORHVGOSA-N 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
- C07C227/10—Formation of amino groups in compounds containing carboxyl groups with simultaneously increasing the number of carbon atoms in the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/08—Indoles; Hydrogenated indoles with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/86—Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/94—[b, c]- or [b, d]-condensed containing carbocyclic rings other than six-membered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
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Abstract
本发明公开了一种利用含氮及保护基化合物制备含氮芳基化合物的方法,包括以下步骤:(1)将含氮羰基化合物与邻二碘苯反应,得到含氮及保护基化合物;(2)将含氮及保护基化合物与硫磺反应,得到含氮芳基化合物;(3)将含氮及保护基化合物脱保护后,分别与苯乙炔、吲哚、硫磺、硫代乙酰胺、降冰片烯、硫化钾、丙烯酸乙酯、4‑氯苯硼酸反应,得到含氮芳基化合物;(4)将含氮及保护基化合物脱保护后,进行碘分子内成环反应,得到含氮芳基化合物。本发明以无金属催化的反应制备含氮及保护基化合物,经过进一步反应得到产物,具有高收率、反应条件简单的优点。
Description
技术领域
本发明属于有机合成技术,具体涉及一种利用含氮及保护基化合物制备含氮芳基化合物的方法。
背景技术
C-N键是有机化学和药物合成领域最常见的化学键类型之一,C-N键的形成在有机合成化学中特别重要,在许多具有生物活性的天然产品、医药制剂、农用化学品和高分子材料中,含氮的结构基团几乎无处不在(Webb M E, Marquet A, Mendel R R, et al.Elucidating biosynthetic pathways for vitamins and cofactors[J]. Natural product reports, 2007, 24(5), 988–1008;Kim J, Movassaghi M. Biogeneticallyinspired syntheses of alkaloid natural products[J]. Chemical Society reviews,2009, 38(11), 3035–3050;Afanasyev O I, Kuchuk E, Usanov D L, et al. ReductiveAmination in the Synthesis of Pharmaceuticals[J]. Chemical Reviews, 2019, 119(23), 11857–11911)。有机化学中的交叉偶联反应指的是,在有关金属催化剂或其他配体的存在下,使两个片段结合在一起的反应。其中,钯催化的交叉偶联反应在有机合成及相关领域中具有极其重要的地位。目前,可以使用各种商业化的钯催化剂和含磷配体并在温和的环境条件下进行多种广泛使用的钯催化交叉偶联反应。其中,钯催化C-N键的形成具有非常重要的意义,为有机分子中引入胺基开辟了新的途径。在经过对C-N偶联反应一系列的文献调研后,发现在金属催化领域经过近百年的发展已经有非常多的研究成果。但是一些常用的金属催化剂,尤其是以钯为代表的的贵金属的价格水涨船高,极大的提高了工业生产以及科研成本。
发明内容
本发明公开了一种利用含氮及保护基化合物制备含氮芳基化合物的方法。关键的反应含氮羰基化合物与邻二碘苯反应无需金属催化剂,邻二碘苯有市售,价格便宜、化学性质稳定;反应条件温和,既不需要低温也不需要高温,所用试剂廉价易得,是非常实用的C-N偶联芳基化的新方法。
本发明采用如下技术方案:
一种利用含氮及保护基化合物制备含氮芳基化合物的方法,包括以下步骤:
(1)将含氮羰基化合物与邻二碘苯反应,得到含氮及保护基化合物;
(2)将含氮及保护基化合物与硫磺反应,得到含氮芳基化合物;
(3)将含氮及保护基化合物脱保护后,分别与苯乙炔、吲哚、硫磺、硫代乙酰胺、降冰片烯、硫化钾、丙烯酸乙酯、4-氯苯硼酸反应,得到含氮芳基化合物;
(4)将含氮及保护基化合物脱保护后,进行碘分子内成环反应,得到含氮芳基化合物。
本发明中,含氮羰基化合物(1ba1, 1ca1、1cf)的化学式如下:
、、
含氮及保护基化合物的化学式如下:
、或者。
本发明中,在氢化钠、四氢呋喃存在下,将含氮羰基化合物与邻二碘苯室温反应4~15小时,得到含氮及保护基化合物;邻二碘苯、含氮羰基化合物、氢化钠的摩尔比为(2~3)∶1∶(2~3);优选为2.5∶1∶2.5。
本发明中,用三氟乙酸将含氮及保护基化合物脱保护,即将Boc保护基脱除。
本发明的反应无需金属催化剂便可以很方便的得到邻碘芳基化产物,进一步衍生出了各种各样有价值的化合物。首先用三氟乙酸将Boc保护基脱除,得到邻碘胺化物(7a-7c);将其与炔、苯硼酸、吲哚等进行偶联,用丙烯酸乙酯可与其发生烷基化反应,用单质硫进行硫代,制备各种各样2位取代的胺化物;利用邻碘胺化物进行了多种环化反应,制备了如: 咔唑类、苯并噻唑硫酮类、吲哚啉类、苯并噻唑类以及吩噻嗪类等数种在药物分子合成过程中需要的重要类型的化合物。由此可见,本发明邻碘产物在医药相关合成领域也具有非常高的应用价值。
附图说明
图1为含氮及保护基化合物结构及制备示意图。
图2为含氮及保护基化合物脱保护示意图。
图3为含氮及保护基化合物以及含氮及保护基化合物脱保护后的反应示意图。
具体实施方式
本发明涉及的原料可市购,也可自行制备;具体实验方法以及测试方法为常规技术。
底物合成。将苯甲胺、对甲基苯胺或者2-溴苯胺(10 mmol, 1.0 equiv)溶解在乙醇(20 mL, 0.5 M)溶液中,加入(Boc)2O (12 mmol, 1.2 equiv),在回流反应5h,反应完成后,将溶剂减压除去,用乙酸乙酯与石油醚对混合物进行打浆,得到纯产品(1ba1, 1ca1、1cf)。
实施例
由1ba1、1ca1、1cf制备得到3ba1、3ca1、3cf,参见图1:将氢化钠 (60% in oil, 60mg, 1.5 mmol, 2.5 equiv) 称量至反应瓶中,常规磁力搅拌下加入溶解在THF (2.0 mL)溶液中的化合物1 (127 mg, 0.6 mmol, 1 equiv),室温下搅拌2 min;然后加入溶解在THF(0.4 mL) 溶液中的化合物2a (496 mg, 196 µL, 1.5 mmol, 2.5 equiv),40℃反应;再将反应液加入水(5.0 mL)中,用乙酸乙酯(3 x 3.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到产物3,反应时间见图1。
参见图2,将产物3溶于DCM (0.36 M)中。在室温下加入三氟乙酸 (2.0 equiv),在室温下搅拌4 h。待反应完成后,在反应混合物中加入6 mol/L的氢氧化钠水溶液调节pH7.5,随后用DCM进行萃取。有机层用盐水洗涤,用无水Na2SO4干燥,溶剂在减压下被蒸馏除去。快速柱层析纯化,得到纯产品7a-7c。参见图3,7a-7c以及未脱保护的3ca1可经过进一步反应,得到含氮芳基化合物,具体各反应如下。
氮气保护下,将邻碘芳胺化合物7a (61.8 mg, 0.2 mmol, 1.0 equiv)和4-氯苯硼酸8a (40 mg, 0.24 mmol, 1.2 equiv)用THF/H2O (4.8 mL/1.6 mL)的混合溶液溶解于10 mL两口反应瓶中。随后,加入K2CO3 (60 mg, 0.4 mmol, 2.0 equiv), Pd(PPh3)4 (24mg, 0.02 mmol, 10 mol%),反应混合物在60 °C下搅拌24 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9a (54.6 mg),产率93%。
将邻碘芳胺化合物7a (93 mg, 0.3 mmol, 1.0 equiv)和丙烯酸乙酯8b (150mg, 1.5 mmol, 5.0 equiv)用无水MeCN (1.2 mL, 0.25 M)溶液溶解于10 mL两口反应瓶中。随后,加入InCl3 (7 mg, 0.03 mmol, 0.1 equiv), NaBH4 (14 mg, 0.36 mmol, 1.2equiv),反应混合物在室温下搅拌5 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9b (35.7 mg),产率42%。
在氮气保护下,将邻碘芳胺化合物7a (61.8 mg, 0.2 mmol, 1.0 equiv)用无水甲苯(1.0 mL, 0.2 M)溶液溶解于10 mL两口反应瓶中。随后,加入Pd(OAc)2 (11 mg, 0.05mmol, 25 mol%), DBU (182.6 mg, 1.2 mmol, 6.0 equiv),反应混合物在100 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9c (33 mg),产率91%。
在氮气保护下,将邻碘芳胺化合物7a (93 mg, 0.3 mmol, 1.0 equiv)用DMSO(2.0 mL, 0.15 M)溶液溶解于10 mL两口反应瓶中。随后,加入K2S (132.3 mg, 1.2 mmol,4.0 equiv),在氮气保护下反应混合物在140 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,再用水(2 x 5.0 mL)反萃洗去DMSO,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9d (57.9 mg),产率75%。
将邻碘芳胺化合物7a (93 mg, 0.3 mmol, 1.0 equiv)和降冰片烯8c (28.5 mg,0.3 mmol, 1.0 equiv)用无水DMF (2.5 mL, 0.12 M)溶液溶解于10 mL两口反应瓶中。随后,加入Pd(OAc)2 (2.7 mg, 0.012 mmol, 4 mol%), K2CO3 (99.5 mg, 0.72 mmol, 2.4equiv),在氮气保护下反应混合物在105 °C下搅拌24 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,再用水(2 x 5.0 mL)反萃洗去DMF,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9e (71.9 mg),产率87%。
将硫代乙酰胺8d (225 mg, 3.0 mmol, 3.0 equiv),CuI (19 mg, 0.1 mmol, 10mol%), Cs2CO3 (978 mg, 3.0 mmol, 3.0 equiv)称取于经过烘箱干燥的10 mL两口反应瓶中。在氮气保护下,将溶解于DMSO/H2O (0.5 mL/0.25 mL)混合溶液的邻碘芳胺化合物7b(374 mg, 1.0 mmol, 1.0 equiv)加入反应瓶中,反应混合物在120 °C下搅拌20 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,再用水(2 x 5.0 mL)反萃洗去DMSO,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9f (159.4 mg),产率80%。
将邻碘芳胺化合物7c (123.7 mg, 0.4 mmol, 1.0 equiv)和硫磺8e (51.2 mg,1.6 mmol, 4.0 equiv)用DMSO (3.0 mL, 0.13 M)溶液溶解于10 mL两口反应瓶中。随后,加入Cu(OAc)2·H2O (16 mg, 0.08 mmol, 20 mol%), Na2CO3 (85 mg, 0.8 mmol, 2.0equiv),在氮气保护下,反应混合物在130 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,再用水(2 x 5.0 mL)反萃洗去DMSO,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9g (77.7 mg),产率92%。
将吲哚8f (23.5 mg, 0.2 mmol, 1.0 equiv) 和邻碘芳胺化合物7c (86.5 mg,0.28 mmol, 1.4 equiv)用DMF (0.5 mL, 0.4 M)溶液溶解于反应瓶中。随后,加入CuI (12mg, 0.06 mmol, 30 mol%), Cs2CO3 (130 mg, 0.4 mmol, 2.0 equiv), DMEDA (25 mg,0.28 mmol, 1.4 equiv),在氮气保护下,反应混合物在120 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,再用水(2 x 5.0 mL)反萃洗去DMF,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9h (41.8 mg),产率70%。
将邻碘芳胺化合物7c (62 mg, 0.2 mmol, 1.0 equiv)和苯乙炔8g (22.8 μL,0.2 mmol, 1.0 equiv)用甲苯(3.0 mL, 0.067 M)溶液溶解于10 mL两口反应瓶中。随后,加入PdCl2(PPh3)2 (7 mg, 0.01 mmol, 5 mol%), CuI (1.9 mg, 0.01 mmol, 5 mol%),Et3N (0.8 mL),在氮气保护下,反应混合物在60 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9i (51.6 mg),产率91%。
将邻碘芳胺化合物3ca1 (409 mg, 1.0 mmol, 2.0 equiv)和硫磺8e (16 mg,0.5 mmol, 1.0 equiv)用1,4二氧六环(1.5 mL, 0.33 M)溶液溶解于10 mL两口反应瓶中。随后,加入Cu(OAc)2 (20 mg, 0.1 mmol, 20 mol%), KF (58.1 mg, 1.0 mmol, 2.0equiv), Et3N (0.3 mL),在氮气保护下,反应混合物在110 °C下搅拌12 h。将反应液用硅藻土过滤后加入乙酸乙酯(5.0 mL)稀释,加入水(10 mL),用乙酸乙酯(3 x 5.0 mL)萃取,合并有机层,用无水Na2SO4干燥,过滤,蒸干,快速柱层析纯化,得到纯化合物9j (60 mg),产率38%。
Tertyield 88%.1H NMR (400 MHz, CDCl3) δ 7.87 (minor)/ 7.84 (major) (brd, J = 7.6 Hz 1H), 7.34–7.12 (br m, 6 H), 6.99–6.71 (br m, 2 H), 5.27(major)/5.16 (minor) (br d, J = 14.8 Hz), 4.14 (minor)/4.10 (major) (br d, J= 14.8 Hz), 1.55 (minor)/1.37 (major) (br s, 9 H). 13C NMR (101 MHz, CDCl3) δ154.37, 154.24 (minor), 144.25 (minor), 144.19, 139.84 (minor), 139.43,138.07 (minor), 137.80, 130.67 (minor), 130.31, 129.14, 129.05 (minor),128.70, 128.59, 128.41, 127.46, 100.33, 81.16 (minor), 80.43, 54.08 (minor),52.72, 28.57 (minor), 28.34. LR-MS (ESI): m/z 432.0 [M+Na]+.
Tert-butyl (2-iodophenyl)(p-tolyl)carbamate (3ca1):yield 91%.1H NMR(400 MHz, CDCl3) δ 7.89 (d, J = 7.8 Hz, 1H), 7.33 (t, J = 7.3 Hz, 1H), 7.26(d, J = 6.7 Hz, 1H), 7.20 (d, J = 7.6 Hz, 2H), 7.07 (d, J = 7.8 Hz, 2H), 6.98(t, J = 7.4 Hz, 1H), 2.29 (s, 3H), 1.45 (s, 9H). 13C NMR (101 MHz, CDCl3) δ152.84, 145.16, 139.80, 139.26, 134.71, 130.09, 129.27, 129.12, 128.65,124.98, 100.68, 81.30, 77.42, 77.10, 76.78, 28.29, 20.92. LR-MS (ESI): m/z432.0 [M+Na]+.
Tert-butyl (2-bromophenyl)(2-iodophenyl)carbamate (3cf):yield 98%.1HNMR (400 MHz, CDCl3) δ 7.90 (d, J = 5.0 Hz, 1H), 7.64 (t, J = 6.5 Hz, 1H),7.51 (t, J = 7.6 Hz, 1H), 7.40 (t, J = 7.6 Hz, 1H), 7.30 – 7.18 (m, 2H), 7.11(t, J = 7.5 Hz, 1H), 6.93 (t, J = 7.5 Hz, 1H), 1.48 (s, 9H). 13C NMR (101 MHz,CDCl3) δ 151.79 / 151.77, 145.55 / 145.41, 142.21 / 141.98, 140.05 / 139.79,133.70 / 133.35, 129.80, 129.45 / 129.34, 129.15, 128.75, 128.62 / 128.53,128.45 / 128.40, 123.43 / 123.22, 99.98 / 99.84, 81.70 / 81.65, 28.26. LR-MS(ESI): m/z 495.9 [M+Na]+.
4'-Chloro-N-(p-tolyl)-[1,1'-biphenyl]-2-amine (9a):1H NMR (400 MHz,CDCl3) δ 7.30 (s, 4H), 7.20 (d, J = 8.0 Hz, 1H), 7.15 – 7.08 (m, 2H), 6.98(d, J = 8.3 Hz, 2H), 6.88 – 6.82 (m, 3H), 5.33 (s, 1H), 2.21 (s, 3H). 13C NMR(101 MHz, CDCl3) δ 141.01, 140.45, 137.62, 133.47, 131.24, 130.80, 130.75,129.97, 129.68, 129.16, 128.67, 120.66, 119.29, 116.85, 20.74. LR-MS (ESI):m/z 294.0 [M+H]+.
Ethyl 3-(2-(p-tolylamino)phenyl)propanoate (9b):1H NMR (400 MHz,CDCl3) δ 7.95 (dd, J = 7.9, 1.4 Hz, 1H), 7.39 (td, J = 7.8, 1.5 Hz, 1H), 7.19(dd, J = 7.9, 1.6 Hz, 1H), 7.00 (ddd, J = 9.5, 6.6, 2.5 Hz, 3H), 6.49 – 6.43(m, 2H), 4.11 (q, J = 7.1 Hz, 2H), 3.98 – 3.88 (m, 2H), 2.74 – 2.68 (m, 2H),2.24 (s, 3H), 1.23 (t, J = 7.1 Hz, 3H). 13C NMR (101 MHz, CDCl3) δ 171.98,148.56, 145.20, 140.60, 130.80, 129.92, 129.75, 128.30, 127.40, 114.03,102.28, 60.66, 47.54, 32.80, 20.38, 14.23. LR-MS (ESI): m/z 284.1 [M+H]+.
3-Methyl-9H-carbazole (9c):1H NMR (400 MHz, CDCl3) δ 8.03 (dd, J =7.8, 0.6 Hz, 1H), 7.91 (s, 1H), 7.87 (d, J = 0.7 Hz, 1H), 7.42 – 7.34 (m,2H), 7.30 (d, J = 8.2 Hz, 1H), 7.24 – 7.17 (m, 2H), 2.52 (s, 3H). 13C NMR (101MHz, CDCl3) δ 139.90, 137.80, 128.82, 127.25, 125.72, 123.60, 123.31, 120.33,120.31, 119.29, 110.63, 110.32, 21.51. LR-MS (ESI): m/z 182.0 [M+H]+.
3-(P-tolyl)benzo[d]thiazole-2(3H)-thione (9d):1H NMR (400 MHz, CDCl3)δ 7.46 (dd, J = 7.3, 1.6 Hz, 1H), 7.37 (d, J = 8.1 Hz, 2H), 7.28 (d, J = 8.2Hz, 2H), 7.19 (pd, J = 7.5, 3.8 Hz, 2H), 6.82 – 6.75 (m, 1H), 2.44 (s, 3H).13C NMR (101 MHz, CDCl3) δ 169.88, 139.45, 138.50, 132.21, 130.74, 127.70,126.32, 123.55, 122.58, 119.23, 111.92, 77.42, 77.10, 76.78, 21.36. LR-MS(ESI): m/z 258.0 [M+H]+.
9-(P-tolyl)-2,3,4,4a,9,9a-hexahydro-1H-1,4-methanocarbazole (9e):1HNMR (400 MHz, CDCl3) δ 7.21 – 7.16 (m, 2H), 7.11 (d, J = 8.0 Hz, 2H), 7.06(d, J = 7.2 Hz, 1H), 6.98 (t, J = 7.7 Hz, 1H), 6.83 (d, J = 8.0 Hz, 1H), 6.64(t, J = 7.3 Hz, 1H), 4.20 (d, J = 8.3 Hz, 1H), 3.28 (d, J = 8.3 Hz, 1H), 2.44(d, J = 1.8 Hz, 1H), 2.33 (s, 1H), 2.31 (s, 3H), 1.58 – 1.48 (m, 3H), 1.37(t, J = 8.9 Hz, 1H), 1.28 – 1.18 (m, 1H), 1.09 (dd, J = 10.3, 1.4 Hz, 1H). 13CNMR (101 MHz, CDCl3) δ 149.37, 141.17, 133.37, 131.26, 129.75, 127.25,124.88, 120.09, 118.01, 107.67, 77.42, 77.10, 76.78, 71.32, 50.48, 43.51,41.12, 32.38, 28.63, 25.28, 20.84. LR-MS (ESI): m/z 276.1 [M+H]+.
10H-phenothiazine (9f):1H NMR (400 MHz, CDCl3) δ 6.97 (dd, J = 6.9,4.6 Hz, 4H), 6.81 (t, J = 7.5 Hz, 2H), 6.53 (d, J = 7.9 Hz, 2H), 5.80 (s,1H). 13C NMR (101 MHz, CDCl3) δ 141.72, 127.41, 126.90, 122.68, 118.35,114.51. LR-MS (ESI): m/z 200.0 [M+H]+.
2-Phenylbenzo[d]thiazole (9g):1H NMR (400 MHz, CDCl3) δ 8.09 (dt, J =5.7, 3.5 Hz, 3H), 7.88 (d, J = 8.0 Hz, 1H), 7.51 – 7.44 (m, 4H), 7.37 (dd, J= 11.2, 4.0 Hz, 1H). 13C NMR (101 MHz, CDCl3) δ 168.12, 154.20, 135.12,133.67, 131.01, 129.07, 127.61, 126.36, 125.24, 123.29, 121.67. LR-MS (ESI):m/z 212.0 [M+H]+.
N-benzyl-2-(1H-indol-1-yl)aniline (9h):1H NMR (400 MHz, CDCl3) δ 7.72– 7.66 (m, 1H), 7.30 – 7.25 (m, 3H), 7.24 – 7.14 (m, 8H), 6.77 (ddd, J =14.6, 7.9, 1.2 Hz, 2H), 6.70 (d, J = 3.1 Hz, 1H), 4.30 (s, 2H), 4.08 (s, 1H).13C NMR (101 MHz , CDCl 3 ) δ 144.48, 139.04, 136.72, 132.58, 129.50, 128.83, 128.66, 128.61, 127.20, 126.98, 124.71, 122.33, 121.02, 1 20.30, 117.03, 111.88, 110.89, 103.47, 47.58. LR-MS (ESI): m/z 299.1 [M+H]+.
N-benzyl-2-(phenylethynyl)aniline (9i):1H NMR (400 MHz, CDCl3) δ 7.48(dd, J = 11.4, 7.3 Hz, 2H), 7.42 – 7.22 (m, 9H), 7.14 (t, J = 7.8 Hz, 1H),6.65 (t, J = 7.5 Hz, 1H), 6.57 (d, J = 8.2 Hz, 1H), 5.14 (s, 1H), 4.43 (s,2H). 13C NMR (101 MHz, CDCl3) δ 148.76, 139.18, 132.18, 131.47, 130.06,128.73, 128.42, 128.23, 127.25, 127.08, 123.32, 116.69, 110.01, 107.61,95.33, 86.08, 47.74. LR-MS (ESI): m/z 284.1 [M+H]+.
Tert-butyl (2-mercaptophenyl)(p-tolyl)carbamate (9j):1H NMR (400 MHz,CDCl3) δ 7.54 (d, J = 7.4 Hz, 1H), 7.19 – 7.11 (m, 5H), 7.05 (d, J = 8.4 Hz,2H), 2.29 (s, 3H), 1.45 (s, 9H). 13C NMR (101 MHz, CDCl3) δ 141.01, 140.45,137.62, 133.47, 131.24, 130.80, 130.75, 129.97, 129.68, 129.16, 128.67,120.66, 119.29, 116.85, 20.74. 13C NMR (101 MHz, CDCl3) δ 153.43, 153.13(minor), 140.46 (minor), 140.41, 139.42, 136.11, 135.94 (minor), 135.07(minor), 135.00, 129.33, 129.26 (minor), 129.19, 129.07 (minor), 128.02,127.76, 127.46, 125.47, 125.16 (minor), 81.49, 81.17 (minor), 28.27, 27.95(minor), 20.96, 20.67 (minor). LR-MS (ESI): m/z 316.1 [M+H]+.
金属催化C-N偶联领域虽发展的很好,但是其自身具有的缺点也不容忽视。近年来,一些无过渡金属催化的 C-N 偶联胺化反应也有一定的发展,与传统的金属催化相比优势并不明显。但相比于金属偶联胺化,本发明的方法却有巨大的优势,反应体系不需要金属催化剂,生产成本更低,对环境更加友好,实验方法更为简便,能得到邻碘芳基化产物,而用传统的金属偶联难免会产生过度偶联的副产物,本发明的方法是对C-N偶联领域相关方法的重要补充,是有重大意义的。
Claims (2)
1.一种利用含氮及保护基化合物制备含氮芳基化合物的方法,其特征在于,包括以下步骤:
(1)将含氮羰基化合物与邻二碘苯反应,得到含氮及保护基化合物;
含氮羰基化合物的化学式如下:
、、;
所述含氮及保护基化合物的化学式如下:
、或者;
(2)将含氮及保护基化合物脱保护后,得到7a、7b或者7c;所述7a、7b、7c的化学式如下:
、、;
(3)将7a进行碘分子内成环反应,得到含氮芳基化合物;碘分子内成环反应在甲苯中、Pd(OAc)2和DBU存在下进行;
(4)将7a和K2S在DMSO中反应,得到含氮芳基化合物;
(5)将7a和降冰片烯在DMF中、Pd(OAc)2和K2CO3存在下进行反应,得到含氮芳基化合物;
(6)将7b和硫代乙酰胺在DMSO/H2O混合物中、CuI和Cs2CO3存在下进行反应,得到含氮芳基化合物;
(7)将7c和硫磺反应,得到含氮芳基化合物;
(8)将7c和苯乙炔在甲苯中、PdCl2(PPh3)2、CuI和Et3N存在下进行反应,得到含氮芳基化合物。
2.根据权利要求1所述利用含氮及保护基化合物制备含氮芳基化合物的方法,其特征在于,在氢化钠、四氢呋喃存在下,将含氮羰基化合物与邻二碘苯室温反应4~15小时,得到含氮及保护基化合物;邻二碘苯、含氮羰基化合物、氢化钠的摩尔比为(2~3)∶1∶(2~3)。
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