A process for the site-recognition sulfonation of in the 5 - or 7 - position by a fiber-reactive vs - group substituted 2 - amino naphtha linen, the new 5 - sulfo substituted fiber-reactive 2 - aminonaphthalenes and fiber-reactive azo dyes thereof.

摘要

(A) Azo dyes of formula (I) and (II) and their metal complexes are new: M = H or alkali metal; X2 = vinyl or CH2CH2Z; Z = an alkali-cleavable (in)organic gp.; one of SO3M and SO2X2 is in the 5 posn. and the other is in the 7 posn.; Q = the residue of a coupling component; W = Q or D; D = (a) naphthyl substd. by SO2X2 and opt. substd. by SO3H, or (b) phenyl or naphthyl, both opt. substd. by 1-3 of Cl, F, Br, SO3H, COOH, 1-4C alkoxy, 1-4C alkyl, benzamide, sulphobenzamide, 2-5C alkanoylamino, 1-4C alkylamino, di(1-4C alkyl)amino and 6-chloro-4-NHAr- 1,3,5-triazin-2-yl; Ar = phenyl opt. substd. by (a) SO3H, COOH, Cl, Me, Et, OMe, OEt and/or NO2 and (b) one or two SO2X2 gps.; E = (a) 1,4-phenylene or 1,4-naphthylene opt. substd. by 1 or 2 of Cl, Br, F, SO3H, COOH, 1-4C alkoxy, 1-4C alkyl, benzamido, sulphobenzamido, 2-5C alkanoylamino, ureido, and di(1-4C alkyl)amino, (b) 1-hydroxy-2,6(or 2,7)-naphthylene mono- or disubstd. by SO3H, or (C) 1-hydroxy-8-amino-3,6 (or 4,6)-disulpho-2,7-naphthylene. (B) intermediates of formula (IIIa) are new, where R = H or COR'; R' = opt. substd. alkyl or aryl.