Bifunctional reactive dyestuffs containing vinylsulphone or alkylsulphone groups and a 2,4 difluoro pyrimidine group

US5319074A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfram Reddig · Bensberg, DE
• Karl-Josef Herd · Odenthal, DE
• Ernst Kysela · Bensberg, DE

Key dates

• Filing date: Jan 24, 1992
• Grant date: Jun 7, 1994
• Expiry date: Jan 24, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4422
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A metal-free dyestuff of the formula ##STR1## and metal complex thereof wherein: Fb=the radical of a dyestuff selected from the group consisting of mono- or polyazo, anthraquinone, phthalocyanine, formazan, dioxazine and triphenylmethane radicals, PA1 B and B'=a direct bond or an aliphatic or aromatic bridge member to a ring C atom of an aromatic-carbocyclic ring or to a ring C or N atom or an aromatic-heterocyclic ring in Fb, PA1 X=CH.dbd.CH.sub.2 or CH.sub.2 CH.sub.2 --Y, wherein PA1 Y=OSO.sub.3 H, SSO.sub.3 H, OCOCH.sub.3, OPO.sub.3 H.sub.2, OSO.sub.2 CH.sub.3, SCN, NHSO.sub.2 CH.sub.3 --, Cl, Br, F, OCOC.sub.6 H.sub.5, OSO.sub.2 --C.sub.6 H.sub.4 CH.sub.3, ##STR2## R=H or C.sub.1 -C.sub.4 -alkyl, which is optionally be substituted by halogen, hydroxy, cyano, C.sub.1 -C.sub.4 -alkoxy, carboxyl, sulpho or sulphato, PA1 Z=a fiber-reactive radical of the formula ##STR3## wherein M=H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -thioalkyl, F or CF.sub.3, with the exception of the dyestuff of the formula ##STR4##