Dyes containing thiophene radicals

Abstract From the Canadian patent

The novel compounds of the general formula I, where X is fluorine chlorine, bromine, SO2E or unsubsti-, tuted or substituted hydroxyl or mercapto E is alkyl, alkenyl, cycloalkyl, aralkyl aryl, chlorine or unsubsti-, tuted or substituted hydroxyl or amino Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl arylsulfonyl, carboxyl, a, carboxylic ester group or unsubstituted or substituted carbamyl, T is hydrogen, C1-C4-alkyl, a radical which can be introduced by electrophilic substitution or a radical of the formula -CH-8, in which B is a radical of a methylene-active compound or of an amine and K is a, radical of a coupling component are very useful for, dyeing synthetic fibers or plastics.