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

Abstract

Compounds of the formula ##STR1## 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, R.sub.1 is hydrogen C.sub.1-4 alkoxy, C.sub.1-4 alkyl or C.sub.1-4 haloalkyl, R.sub.2 is C.sub.1-4 alkyl, C.sub.1-6 alkyl-CO-, C.sub.1-6 alkyl-O-CO-, -CONH.sub.2, C.sub.1-6 alkyl-NH-CO-, di-(C.sub.1-6 alkyl)N-CO-, 2-, 3-, 4-, 5- or 6-hydroxy(C.sub.2-6 alkyl)-NH-CO- or (2-, 3-, 4-, 5- or 6-hydroxy(C.sub.2-6 alkyl)).sub.2 N-CO-, and R.sub.10 is hydrogen or C.sub.1-4 alkyl, 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.

Dependencies are inferred from the claim text.