DE364033C - Process for the preparation of akridine derivatives - Google Patents

Process for the preparation of akridine derivatives

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Publication number
DE364033C
DE364033C DEF46799D DEF0046799D DE364033C DE 364033 C DE364033 C DE 364033C DE F46799 D DEF46799 D DE F46799D DE F0046799 D DEF0046799 D DE F0046799D DE 364033 C DE364033 C DE 364033C
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DE
Germany
Prior art keywords
derivatives
akridine
preparation
nitro
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEF46799D
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German (de)
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Hoechst AG
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Hoechst AG
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Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to DEF46799D priority Critical patent/DE364033C/en
Application granted granted Critical
Publication of DE364033C publication Critical patent/DE364033C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D219/00Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
    • C07D219/04Heterocyclic compounds containing acridine or hydrogenated acridine ring systems with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
    • C07D219/08Nitrogen atoms
    • C07D219/10Nitrogen atoms attached in position 9
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/90Carbides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyridine Compounds (AREA)

Description

Verfahren zur Darstellung von Akridinderivaten. Durch das Hauptpatent 36o421 und das frühere Zusatzpatent 364032 sind Verfahren geschützt, .die in der Umsetzung von 9-Halogen- bzw. 9-Alkyloxyakridinderivaten - mit Ammoniak oder primären Aminen, Arylamine ausgenommen, bestehen, und die zu neuen Verbindungen führen, die für therapeutische Zwecke wertvoll sind.Process for the preparation of akridine derivatives. By the main patent 36o421 and the earlier additional patent 364032 are protected processes Conversion of 9-halogen or 9-alkyloxyakridine derivatives - with ammonia or primary Amines, with the exception of arylamines, exist and lead to new compounds that are valuable for therapeutic purposes.

Es wurde nun weiter gefunden, !daß amidierte 9-Aminoakridinderivate, welche gleiche wertvolle Eigenschaften besitzen, erhalten werden, indem man Nitro-9-aminoakridinderivate mit Reduktionsmitteln behandelt.It has now been found that amidated 9-aminoacridine derivatives, which have the same valuable properties can be obtained by using nitro-9-aminoacridine derivatives treated with reducing agents.

Beispiele. 1. Durch Nitrieren von 9-Aminoakridin in konzentrierter Schwefelsäure erhält man ein Dinitro-9-aminoakridin, dessen Sulfat in Wasser schwerlöslich ist. Die aus diesem durch Ammoniak abgeschiedene schleimige Base geht beim längeren Kochen der ammoniakalischen Lösung in kristallinischen Zustand über; sie bildet rote Flocken, die unlöslich in Wasser, Alkohol und Äther sind; sie schmilzt unter Zersetzung über 3oo°. Um sie zu reduzieren werden 28 g der Dinitro#base mit 135 g Zinnchlorür verrieben, in 15o ccm 37 prozentige Salzsäure eingetragen. Nach Beendigung der unter Temperatursteigerung bis auf 8o° stattfindenden Reaktion wird auf.o° abgekühlt und das ausgeschiedene Zinndoppelsalz abgesaugt. In wenig Wasser gelöst wird es durch Schwefelwasserstoff entzinnt und 'die filtrierte Lösung eingedampft. Es kristallisiert dann beim Erkalten .derselben das Hydrochlorid des Triaminoakridins in gelben langen Nadeln. Das abgeschiedene freie Triaminoakridin bildet dunkelrote Blättchen, die in Wasser merklich löslich sind.Examples. 1. By nitrating 9-aminoacridine in concentrated Sulfuric acid gives a dinitro-9-aminoacridine, the sulfate of which is sparingly soluble in water is. The slimy base separated from this by ammonia goes with the longer Boiling the ammoniacal solution over to a crystalline state; she educates red flakes that are insoluble in water, alcohol, and ether; it melts under Decomposition over 300 °. To reduce it, 28 g of the Dinitro # base with 135 g of tin chloride triturated, 37 percent hydrochloric acid added to 150 cc. After completion the reaction, which takes place with an increase in temperature up to 80 °, is cooled to .o ° and sucked off the excreted tin double salt. It is dissolved in a little water detinned with hydrogen sulfide and evaporated the filtered solution. It crystallizes then on cooling the same the hydrochloride of triaminoacridine in yellow long Needles. The separated free triaminoacridine forms dark red leaflets, which are noticeably soluble in water.

2. Durch Umsetzung von 4-N itro-2-chlorbenzol-l-carbonsäure mit Anilin gewinnt man die 5-Nitrodiphenylamin-2-carbonsäure (U 11-m a n n A. 355, S. 363) und aus dieser durch Wasserabspaltung das 3-Nitroakridon (U 11-m a n n A. 355, S. 363/64) ; durch dessen Behandlung mit Phosphorpentachlorid entsteht -das 3-Nitro-9-chlorakridin, das aus Benzol in gelben Nädelchen von Fp. 2r4° kristallisiert. Erhitzt man diese Verbindung mit alkoholischem Ammoniak auf 13o°, so erhält man das 3-Nitro-9-aminoakridin, welches über 300° unter Zersetzung schmilzt. Durch Reduktion dieser Verbindung mit Zinnchlorür in konzentrierter Salzsäure oder mit Ferrosulfat in Gegenwart von Ammoniak gewinnt man das 3#9-Diaminoakri.din, dessen Hydrochlorid zitronengelbe, in Wasser leichtlösliche Kristalle bildet. Natronlauge verursacht in der Lösung des Hydrochlorids eine Trübung und Ausscheidung gelber Flokken des freien Diaminoakridins.2. By reacting 4-nitro-2-chlorobenzene-1-carboxylic acid with aniline the 5-nitrodiphenylamine-2-carboxylic acid is obtained (U 11-m a n n A. 355, p. 363) and from this the 3-nitroacridone by elimination of water (U 11-m a n n A. 355, p. 363/64); treatment with phosphorus pentachloride produces 3-nitro-9-chloroacridine, which crystallizes from benzene in yellow needles of melting point 2r4 °. If you heat it up Combination with alcoholic ammonia at 130 °, this gives 3-nitro-9-aminoacridine, which melts over 300 ° with decomposition. By reducing this connection with Tin chloride in concentrated hydrochloric acid or with ferrous sulfate in the presence of ammonia the 3 # 9-Diaminoakri.din, whose hydrochloride is lemon-yellow, is obtained in water forms easily soluble crystals. Caustic soda caused in the solution of the hydrochloride a cloudiness and precipitation of yellow flakes of the free diamino acridine.

3. Au$ 2-Chlor-4-nitrobenzol-r-carborisäure gewinnt "man durch Umsetzung mit p-Phenetidin-die 4'-Äthoxy-5-nitrodiphenylamin-z-carbonsäure, die aus Alkohol kristallisiert und den Fp. 233 bis 234° hat; aus dieser entsteht durch Abspaltung vonWasser und Behandlung mit Phosphorpentachlorid das 3-Nitro-7-äthoxy-9-chlorakridin; es kristallisiert aus Benzol und schmilzt bei 186 bis z87°. Wenn man dieses Akridinderivat -mit alkoholischem Ammoniak erhitzt, erhält man das, 3-Nitro-7-äthoxy-9-aminoakri'din, das aus Nitrobenzol kristallisiert und bei 3i0° schmilzt; es bildet eine gelbe und eine rote Modifikation. 2o g dieses Nitroaminoderivates werden mit 300 9 Eisessig verrührt und sodann eine Lösung von 48 g Zinnchlorür in i60 g Salzsäure auf einmal hinzugegeben. Es schendet sich allmählich eine gelbe Verbindung aus; nach 2 stündigem Erwärmen auf 6o bis 7o°wird diese abfiltriert, nacheinander mit Eisessig und Äther gewaschen und sodann mit Natronlauge behandelt. Man erhält dann das in kaltem Wasser schwerlösliche 2 # 9-Diamino-7-äthoxyakridin, das bei 123 bis i24° unter Zersetzung schmilzt.3. Au $ 2-chloro-4-nitrobenzene-r-carboric acid is obtained by reaction with p-phenetidine-4'-ethoxy-5-nitrodiphenylamine-z-carboxylic acid, which crystallizes from alcohol and has a melting point of 233 to 234 From this, by splitting off water and treating with phosphorus pentachloride, 3-nitro-7-ethoxy-9-chloroacridine is formed; it crystallizes from benzene and melts at 186 to 87 °. If this acridine derivative is heated with alcoholic ammonia, it is obtained the, 3-nitro-7-ethoxy-9-aminoakri'din which crystallizes from nitrobenzene and melts at 3i0 °; be it forms a yellow and a red modification 2o g of this Nitroaminoderivates stirred with 300 9 glacial acetic acid and then a solution of. 48 g of tin chloride in 160 g of hydrochloric acid are added all at once. A yellow compound is gradually eliminated; after 2 hours of heating at 60 to 70 ° it is filtered off, washed successively with glacial acetic acid and ether and then treated with sodium hydroxide solution cold wa This sparingly soluble 2 # 9-diamino-7-ethoxyacridine, which melts at 123 ° to 12 ° with decomposition.

Claims (1)

PATENTANSPRUCH: Abänderung des durch Patent 36042i und dessen Zusatzpatent 364032 geschützten Verfahrens zur Darstellung von Akridinderivaten, darin bestehend, daß man hier Nitro-9-aminoakridinderivate mit Reduktionsmitteln behandelt. PATENT CLAIM: Modification of the process for the preparation of akridine derivatives, protected by patent 36042i and its additional patent 364032, consisting in treating nitro-9-aminoacridine derivatives with reducing agents.
DEF46799D 1920-05-12 1920-05-12 Process for the preparation of akridine derivatives Expired DE364033C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF46799D DE364033C (en) 1920-05-12 1920-05-12 Process for the preparation of akridine derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF46799D DE364033C (en) 1920-05-12 1920-05-12 Process for the preparation of akridine derivatives

Publications (1)

Publication Number Publication Date
DE364033C true DE364033C (en) 1922-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEF46799D Expired DE364033C (en) 1920-05-12 1920-05-12 Process for the preparation of akridine derivatives

Country Status (1)

Country Link
DE (1) DE364033C (en)

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