Importance

Loading Importance Indicators...

Abstract

Anthraquinone-azomethine compounds of the formula ##STR1## or of the tautomeric formula ##STR2## or of the tautomeric formula ##STR3## in which A denotes an anthraquinone radical which is free from sulphonic acid groups and optionally further substituted and which preferably consists of at most 5 fused rings, R.sub.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxy-C.sub.1 -C.sub.4 -alkyl, optionally substituted phenyl, carboxyl, carboxylic acid, C.sub.1 -C.sub.4 -alkyl ester or hydroxyl, R.sub.2 denotes hydrogen, halogen, nitro, cyano, optionally substituted carbamoyl or optionally substituted sulphamoyl, sulphonic acid C.sub.1 -C.sub.4 -alkyl ester, sulphonic acid aryl ester, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, optionally substituted benzoyl, alkyl or optionally substituted phenyl sulphone, or a hetero-aromatic radical, for example a radical of the formula ##STR4## or of the formula ##STR5## or of the formula ##STR6## R.sub.3 denotes optionally substituted aryl or hetero-aryl, cycloalkyl or C.sub.1 -C.sub.12 -alkyl, it being possible for the alkyl chain to be interrupted by oxygen or sulphur and/or substituted by hydroxyl, N(R.sub.5).sub.2 --or--N(R.sub.5).sub.3.sup..sym. X.sup..crclbar. groups, R.sub.4 denotes a substituent, R.sub.5 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, cycloalkyl or optionally substituted aryl, X denotes an anion, m denotes 1, 2, 3 or 4 and n denotes 0, 1, 2, 3 or 4, processes for their preparation and processes for dyeing synthetic fibre materials and for pigmenting organic macromolecular substances using the new anthraquinone-azomethine compounds.

Loading the Abstract Image...

First Claim