Bicyclic copper complex formazan compounds having a fiber-reactive group of the vinyl sulfone series, containing a fiber-reactive group suitable as dyestuffs

US4607098A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventor

• Gunther Schwaiger · Frankfurt, DE

Key dates

• Filing date: Jul 24, 1985
• Grant date: Aug 19, 1986
• Expiry date: Jul 24, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/5036
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Copper complex formazan compounds useful as dyestuffs and having fiber-reactive dyestuff properties, which are capable of providing fast, deep dyeings and prints on fiber materials, preferably of cellulose and polyamide fibers, have the following structural formula ##STR1## in which m and n are 1 or 2, A is a benzene ring or a naphthalene ring, either of which is necessarily substituted by the sulfo group in the ortho-position relative to the N-atom and which can optionally be further substituted with one to three substituents; B is phenyl or naphthyl, either of which can be substituted or unsubstituted; PA0 M is hydrogen or one equivalent of a metal; PA0 X is hydrogen or sulfo; PA0 Z is hydrogen or a group which confers water-solubility, one or both of which--besides the sulfo group necessarily required in the o-position relative to the N-atom of the hydrazone component A--are bonded to A on an aliphatic or aromatic carbon atom, PA0 Z.sup.1 is hydrogen or a group which confers water-solubility, one or both of which are bonded to B on an aliphatic or aromatic carbon atom of B, Z and Z.sup.1 together denoting not more than three sulfo groups if X is a sulfo group, and Y is the vinyl…