Copper complex sulphonated reactive dis:azo dyestuff cpds. - having amino-triazinyl-amino gp(s), used for dyeing cellulose or polyamide

摘要

The new dyestuffs are of formula (I) (in which A is a (substd.) benzene or naphthalene ring. Benzene ring B may have other substits. R1 and R2 are H or (substd.) 1-4C alkyl, R3 is H, (substd.) 1-4C alkyl, (substd.) benzyl, cyclohexyl, naphthyl, phenyl or a substd. phenyl gp. of formula (II). R4 and R5 are 1-4C alkyl, 1-4C alkoxy(alkoxy), acetylamino, ureido, COOH, halogen, NO2 or OH and R5 may also be H. Alternatively, R2, R3 and the N atom may form a 6-membered heterocycle. The aminotriazinyl-amino gp(s). are attached to A and/or the naphthalene gp. having one of the complex-forming O atoms). Ring A opt. has a 1-4 (1-2) C alkyl, 1-4 (1-2) C alkoxy or halogen (C1) substit. in the p-position to the complex-forming O atoms. (I) are useful for dyeing and printing cellulose or natural or synthetic polyamides, including leather. They are highly reactive and give dyeing with good wet- and light-fastness. (I) are readily soluble (in electrolytes) and give good exhaustion and fixing yield, whilst the unfixed fraction can be removed easily.