Basf Aktiengesellschaft

Hartmut Lardon

Guenther Seybold

Heinz Krueger

Manfred Patsch

Heinz Eilingsfeld

Ortwin Schaffer

Dietmar Augart

Novel compounds which, in the form of the free acid, are of the formula 1 ##STR1## where X is chlorine or fluorine and R is hydrogen, vinylsulfonylphenyl, .beta.-sulfatoethylsulfonylphenyl, vinylsulfonylbenzyl, sulfophenyl or .beta.-sulfatoethylsulfonylbenzyl, are particularly suitable for dyeing cotton.

Azo dyes of methylaniline disulfonic acid coupled with naphthylamine

Compounds of the general formula I ##STR1## wherein R.sup.1 is hydrogen, fluorine, chlorine or bromine, R.sup.2 is hydrogen, fluorine, chlorine, bromine, or nitro, B is aliphatic or a sulfo-substituted phenylene radical, and X is a dye radical, are useful for dyeing hydroxyl-containing textile material, in particular cotton.

Reactive dyes containing substituted 4-fluoropyridaz-6-one radicals

Sulfides prepared by reacting a sulfoxide with a hydrazine or hydroxylamine derivative or a quaternary salt thereof are useful starting materials for the preparation of drugs, pesticides and dyes.

Growing community of inventors

Ludwigshafen, Germany

Hartmut Lardon