New compounds, a process for their preparation and their use as dyes and pigments

摘要

Compounds of formula (1) wherein R₁ is hydrogen, hydroxy, halogen, nitro, cyano, amino, carboxy, carboxylic ester, sulfo, sulfonic ester, carboxylic amide, sulfonic amide, alkoxy, aryloxy, alkylthio or arylthio, X is -O-, -S-, -NH- or -N(alkyl)-, Y is hydrogen or carboxylic ester, Z is -C- or -N-, T is -C- or -N-, R₂ is hydrogen, alkyl or CN, n is 0 or 1, when Z is -N- then n is 0, m is 0 or 1, when T is -N- then m is 0, A is a heterocyclic or linear or polycondensed aromatic group which is unsubstituted or substituted by hydroxy alkyl, halogen, nitro, cyano, amino, acylamino, carboxylic ester, sulfonic ester, carboxylic amide, sulfonic amide, alkoxy, aryloxy, alkylthio, arylthio or phenyl, or A together with T and R₂ can form an allycyclic or heterocyclic ring, their preparation and their use in the production of coloured plastics or polymeric colour particles.