IMPROVEMENTS IN OR RELATING TO ORGANIC COMPUNDS

摘要

The new disperse dyes of the formula IMAGE where D is the radical of a diazo component customary in the chemistry of disperse dyes, K is optionally further substituted 1,4-phenylene or 1,4-naphthylene, R1 is hydrogen or optionally substituted alkyl or alkenyl, R2 is hydrogen, acyl or optionally substituted alkyl, R3 and R4 are singly and independently of one another hydrogen or alkyl or else - when R5 is hydrogen - together cyclohexyl together with the carbon atom to which they are bonded, R5 is hydrogen or a group of the formula IMAGE and R6 is hydrogen, acyl or optionally substituted C1-4-alkyl or benzyl and the molecule is free of sulphonic acid groups, are prepared by coupling a diazotised amine of the formula D-NH2 with a compound of the formula IMAGE They are suitable for dyeing or printing hydrophobic synthetic or cellulosic fibre materials.