Water-soluble azo compounds containing a sulfo-naphthol as a coupling component and having fiber-reactive groups of the vinylsulfone series, suitable as dyestuffs

Abstract

Water-soluble azo compounds which have fiber-reactive dyestuff properties and dye materials containing carboxamide and/or hydroxyl groups, such as fiber materials, in particular cellulose fiber materials, in strong, fast, predominantly bluish-tinged red to orange shades; they correspond to the general formula (1) ##STR1## in which: M is a hydrogen atom or an alkali metal; R is alkyl having 1 to 4 carbon atoms; D is a group of the formula ##STR2## in which R.sup.1 is hydrogen, alkyl having 1 to 4 carbon atoms, hydroxy, nitro, alkoxy having 1 to 4 carbon atoms, chlorine, bromine or carboxy, R.sup.2 is hydrogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, chlorine or sulfo, R.sup.3 is hydrogen or sulfo; k is the number zero or 1; p is the number zero, 1 or 2; m is the number zero or 1; n is the number zero or 1; and X and Y are both independently of one another vinyl, .beta.-thiosulfatoethyl or .beta.-sulfatoethyl.

Dependencies are inferred from the claim text.