Fiber reactive azo dyes containing a 2-quinolone diazo component radical

An azo compound corresponding to the formula ( 1) ##STR41## in which:

• R.sup.o is hydrogen, alkyl having 1 to 4 carbon atoms, halogen, sulfo, carboxy, aminocarbonyl, alkoxycarbonyl having 2 to 5 carbon atoms or phenyl;
• R.sup.10 is hydrogen, alkyl having 1 to 4 carbon atoms or halogen;
• R is hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogen or sulfo;
• R.sup.1 is hydrogen, alkyl having 1 to 4 carbon atoms or alkyl having 1 to 4 carbon atoms which is substituted by hydroxy, cyano, alkoxy having 1 to 4 carbon atoms, carboxy, sulfo, sulfato or phosphato, or is phenyl or naphthyl, or is phenyl or naphthyl each being substituted by 1, 2 or 3 substituents selected from the group consisting of halogen, hydroxy, cyano, alkoxy having 1 to 4 carbon atoms, alkyl having 1 to 4 carbon atoms, alkoxycarbonyl having 2 to 5 carbon atoms, carboxy, sulfamoyl, sulfo and alkylsulfonyl with an alkyl having 1 to 4 carbon atoms;
• E is the bivalent radical, which is free from the amino group, of a compound from the aniline or naphthylamine series which is capable of coupling and may be diazotized;
• v is the number zero, 1 or 2;
• K is the bivalent radical, which is free from the amino group, of a coupling component of the aniline or naphthylamine series or the bivalent radical of a coupling component of the heterocyclic series;
• n is the number 1 or 2;
• Z is a fiber-reactive grouping or group, where, if n is greater than 1, the radicals --N(R.sup.1)--Z can have different meanings from one another;
• the compounds of the formula (1) have at least one sulfo group.