Copper Complexes of Azo Dyes containing Sulphonic Acid Groups and Their Production

摘要

1,150,010. Copper complexes of azo dyes. BADISCHE ANILIN- & SODA-FABRIK A.G. 30 Aug., 1966 [31 Aug., 1965], No. 38592/66. Heading C4P. The invention comprises compounds of the formula wherein X is a substituted or unsubstituted sulphonamide group which contains at least one reactive hydrogen atom, Y is H, halogen, nitro, acylamino or alkyl of 1-6 carbons atoms, R is acyl which may be substituted but which is free of halogenopyrimidyl radicals or halogenoalkanoyl radicals of 2 or 3 carbon atoms and n is 1 or 2. The compounds are prepared by treating a compound of the formula where Z is OH or a substituent convertible into OH, under the metallizing conditions, e.g. methoxy, hydrogen, carboxyl or halogen, with a coppering agent, e.g. CuSO 4 , CuCl 2 or [Cu (NH 3 ) 4 ]SO 4 .