Disazo compounds having a sulfo group-containing diazo component radical, a 1,4-phenylene middle component radical having a substituted amino group and a coupling component radical having a free, acylated or etherified hydroxy group

摘要

Compounds of the formula in which A is the radical of a sulpho group-containing diazo component of the aniline or 1- or 2-aminonaphthalene series, K is a coupling component radical of the phenol series, having a free hydroxy group or an etherified or acylated hydroxy group, R1 is hydrogen C1-4alkoxy, C1-4alkyl or C1-4haloalkyl, R2 is C1-4alkyl, C1-6alkyl-CO-, C1-6alkyl-O-CO-, -CONH2, C1-6alkyl-NH-CO-, di-(C1-6alkyl)N-CO-, 2-, 3-, 4-, 5- or 6-hydroxy(C2-6alkyl)-NH-CO- or (2-, 3-, 4-, 5- or 6-hydroxy(C2-6alkyl))2N-CO-, and R10 is hydrogen or C1-4alkyl, and mixtures thereof, which compounds are in free acid or salt form and are useful for dyeing or printing anionic dyeable substrates such as leather, natural and synthetic polyamides, polyurethanes and polyolefins modified to contain basic groups, especially nylon.