Anthraquinone derivatives, processes for their preparation, processes for pigmenting organic macromolecular substances, and pigmented organic macromolecular material

摘要

Anthraquinone derivatives which, in one of their tautomeric structures, correspond to the formula ##STR1## 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,P Pm denotes a number from 1 to 4, preferably 1 or 2,P P R denotes a substituent andPPn denotes 0, 1, 2, 3 or 4, PP processes for their preparation, their use for pigmenting organic macromolecular substances, and the material pigmented in this manner.