Anthraquinone derivatives for pigmenting organic macromolecular substances

Anthraquinone derivatives which in one of their tautomeric structures correspond to the formula ##STR37## in which A denotes an anthraquinone radical which is free from sulphonic acid groups, is optionally further substituted and preferably consists of at most 5 fused rings,

• m is a number from 1-4,
• R.sub.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl group and
• R.sub.2 is a cyano group or a radical of the formula ##STR38## or a radical of the formula ##STR39## in which formulae R.sub.3 is hydrogen, a straight-chain or branched alkyl group or a cycloalkyl radical,
• R.sub.4 is halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, nitro, trifluoromethyl, cyano, unsubstituted carbamoyl, unsubstituted sulfamoyl, substituted carbamoyl or substituted sulfamoyl where the substituents are C.sub.1 to C.sub.4 alkyl, phenyl, benzyl which in turn can be optionally substituted by C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkoxy, fluorine, chlorine, bromine, or nitro or
• R.sub.4 can be acylamino wherein the acyl group is (C.sub.1 to C.sub.4 -alkyl)-carbonyl or benzoyl which in turn can be optionally substituted in the benzene nucleus by C.sub.1 to C.sub.4 alkyl, chloro, C.sub.1 to C.sub.4 alkoxy or nitro or
• R.sub.4 can be arylamino which in turn can be optionally substituted by C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkoxy fluorine, chlorine, bromine or nitro,
• n is 0, 1, 2, 3 or 4 and
• p is 0, 1, 2, 3, 4 or 5.