GB412270A - Process for the manufacture of new condensation products of the anthraquinone series - Google Patents

Process for the manufacture of new condensation products of the anthraquinone series

Info

Publication number
GB412270A
GB412270A GB36532/32A GB3653232A GB412270A GB 412270 A GB412270 A GB 412270A GB 36532/32 A GB36532/32 A GB 36532/32A GB 3653232 A GB3653232 A GB 3653232A GB 412270 A GB412270 A GB 412270A
Authority
GB
United Kingdom
Prior art keywords
amino
sulphonic acid
sulphonic
acid
anthraquinone
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
GB36532/32A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB412270A publication Critical patent/GB412270A/en
Expired legal-status Critical Current

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Abstract

Anthrapyridones are obtained by causing acetoacetic alkyl esters to react at elevated temperature with 1-amino-4-alkyl, -aryl-, -aralkyl- or -hydroxylamino-anthraquinone-2-sulphonic acids in which the 5, 6, 7 or 8 positions may also be substituted. An appropriate solvent, e.g. phenol may be present, and the reaction is advantageously carried out in presence of alkaline reagents. Specification 28765/06, [Class 2], is referred to. According to examples: 1-amino-4-methyl-aminoanthraquinone-2-sulphonic, and 1-amino-4-anilidoanthraquinone-2-sulphonic acid are condensed with acetoacetic methyl and ethyl esters respectively, and the following anthraquinone derivatives are also specified as suitable:--1-amino-4-m-toluidoanthraquinone-2-sulphonic acid, - m - chloranilidoanthraquinone - 2 - sulphonic acid, - p - aminoacetanilidoanthra - quinone - 2 - sulphonic acid, - anilidoanthra - quinone - 2 : 6 - disulphonic acid,- anilido - anthraquinone-2 : 5-disulphonic acid, -hexahydroanilidoanthraquinone - 2 - sulphonic acid, and 1-amino-6-chloro-4-anilidoanthraquinone-2-sulphonic acid.
GB36532/32A 1931-12-23 1932-12-23 Process for the manufacture of new condensation products of the anthraquinone series Expired GB412270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE412270X 1931-12-23

Publications (1)

Publication Number Publication Date
GB412270A true GB412270A (en) 1934-06-25

Family

ID=6435760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36532/32A Expired GB412270A (en) 1931-12-23 1932-12-23 Process for the manufacture of new condensation products of the anthraquinone series

Country Status (1)

Country Link
GB (1) GB412270A (en)

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