Precursors for the preparation of water-soluble triphendioxazine dyestuffs

US4898944A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gunther Schwaiger · Frankfurt, DE
• Hartmut Springer · Königstein, DE
• Walter Helmling · Hofheim, DE

Key dates

• Filing date: Oct 27, 1988
• Grant date: Feb 6, 1990
• Expiry date: Oct 27, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/5033
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which contains in the beta-position a substituent which can be eliminated by an alkali; PA0 T is an optionally substituted alkyl (e.g. substituted with hydroxy) with 1-6 carbon atoms, preferably 1 to 4 carbon atoms, excluding a radical of the group Y' defined above, it also being possible for the alkyl group to be interrupted by hetero groups, preferably 1 to 2 hetero groups, selected from groups of the formulae --O--, --S--, --NH-- and --N(R')--, where R' has the meaning given below, or T is an optionally substituted aryl group; PA0 B is an oxygen or sulfur atom or an amino group of the formula --NH-- or --N(R')--, in which PA1 R' is an alkyl group with 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, such as, in particular, the methyl or ethyl group, which can be substituted; PA0 W is a divalent, optionally substituted aliphatic, optionally alkyl-substituted (C.sub.5 -C.sub.10)-cycloaliphatic, optionally alkyl-substituted aliphatic-(C.sub.5 -C.sub.8)-cycloaliphatic, optionally substituted araliph…