Cationic dyes

Abstract

There are described novel greenish-yellow cationic dyes of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, lower alkyl, lower alkoxy or NO.sub.2, R.sub.2 is unsubstituted lower alkyl, or lower alkyl which is substituted by: hydroxyl, lower alkoxy, halogen, CN, carboxylic acid amide, carboxylic acid alkyl ester or phenyl, or R.sub.2 is alkenyl (C.sub.3 -C.sub.4), the R.sub.3 's independently of one another are each lower alkyl, or both R.sub.3 's together form a carbocyclic 5-, 6- or 7-membered ring, R.sub.4 is hydrogen, lower alkyl, unsubstituted aryl or substituted aryl, R.sub.5, R.sub.6 and R.sub.7 independently of one another are hydrogen, lower alkyl, lower alkoxy, halogen, NO.sub.2, CN or lower alkylsulfonyl, and A is an anion; processes for producing them, and their use for dyeing and printing textile materials, particularly polyacrylonitrile materials.

Dependencies are inferred from the claim text.