Monoazo compounds derived from 2-hydroxymethyl-amino benzoic acids and 2, 6-dihydroxypyridines

摘要

The disperse monoazo dyestuffs, free from sulphonic acid groups, which are represented by the formula:PPWHEREIN X is alkyl, substituted alkyl, phenyl or optionally substituted carbamoyl; Y is a hydrogen atom or a substituent; and Z is a hydrogen atom or an optionally substituted alkyl, cycloalkyl, aryl or heterocyclic radical or an optionally substituted amino group, a process for the manufacture of the said dyestuffs and their use for coloring synthetic textile materials.