Water-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffs

US4730038A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Fritz Meininger
• Ernst Hoyer · Frankfurt am Main, DE
• Rudolf Fass · Kelkheim, DE

Key dates

• Filing date: Dec 16, 1985
• Grant date: Mar 8, 1988
• Expiry date: Dec 16, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4415
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-soluble disazo compounds having fiber-reactive dyestuff properties of the general formula (1) ##STR1## in which D.sub.1 and D.sub.2 are identical or different and each represents a phenyl radical or a naphthyl radical, both of which are substituted by a group of the formula moiety Y or formula moiety Z defined below and can additionally be substituted by one or two substituents from the group comprising sulfo, chlorine, bromine, lower alkyl and lower alkoxy, Z is a group of the formula (2a), (2b), (2c), (2d), (2e) or (2f) ##STR2## in which R denotes an alkyl group having 1 to 4 C atoms and X denotes a chlorine atom, the acetoxy group, the thiosulfate group, the phosphate group or the sulfato group; Y is a radical of the formula (3) ##STR3## in which R.sup.1 and R.sup.2 are identical to or different from one another and each denotes hydrogen or alkyl having 1 to 4 C atoms, and A is hydrogen or an optionally substituted alkyl group having 1 to 6 C atoms or a radical of the formula (4) EQU --B--Z (4) in which B is the phenylene radical or a naphthylene radical, both of which can be substituted by one or two substituents chosen from the set comprising a sulfo group, a chlorine at…