Monoazo reactive dyestuffs

Abstract

Abstract Fiber-reactive monoazo dyestuffs which, in form of free acids, correspond to the general formula ##STR1## in which Z represents one of the groupings --CH.sub.2 --CH.sub.2 --OSO.sub.3 H or --CH=CH.sub.2 a stands for benzene, naphthalene or pyrazole unsubstituted or substituted by alkyl, alkoxy or by a phenyl group which is unsubstituted or may be substituted by alkyl, alkoxy, hydroxy, cyano, nitro, sulfonic acid, sulfonic acid amide, carboxylic acid amide, chlorine, bromine, carboxylic acid, acetylamino, benzoylamino, trifluoromethyl, carbalkoxy, B-sulfatoethylsulfonyl or vinylsulfonyl, and wherein, if A represents a benzene or naphthalene radical the azo group and the amino group of the formula --NR 1 R 2 standing in ortho or para position to each other, and if A is pyrazole, the group --NR 1 R 2 is standing in 5-position and the azo group in 4-position of the pyrazole, R 1 and R 2 are different or the same and each stand for hydrogen or alkyl which may be substituted by chlorine, hydroxy, cyano, alkanoyloxy, benzoyloxy, nitrobenzoyloxy, chlorobenzoyloxy, phenyl or phenyl substituted by alkyl, alkoxy, alkyl-sulfone, sulfonic acid, sulfonic acid amide, carboxylic acid amide, nitro, trifluoromethyl, chlorine or bromine, which are suitable for the dyeing and printing of native and regenerated cellulose fibers, but especially advantageous for dyeing or printing fibers or fabrics of nitrogen - containing fibers of native or synthetic origin.

Inventors

• 👤 Hermann Fuchs
• 👤 Fritz Meininger

Bibliographic Details