Metal complexes of dis- or trisazo compounds containing a middle component twice substituted by hydroxy and/or amino

US4563520A · kind A · utility

Assignee

• BASF SE

Inventors

• Udo Bergmann · Darmstadt, DE
• Guenter Hansen · Ludwigshafen, DE
• Dietrich Lach
• Georg Zeidler · Schifferstadt, DE

Key dates

• Filing date: Oct 21, 1982
• Grant date: Jan 7, 1986
• Expiry date: Oct 21, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B45/24
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds containing sulfonic acid groups and of the general formula I ##STR1## where D.sup.1 is a radical of a diazo component, X.sup.1 and X.sup.2 independently of one another are each hydroxyl or unsubstituted or substituted amino, Y is hydrogen, chlorine, methyl, hydroxysulfonyl or a radical of the formula EQU D.sup.3 --N.dbd.N-- and D.sup.2 is a radical of the formula ##STR2## D.sup.3 is a radical of a diazo component from the aniline or aminonaphthalene series, K is a radical of a coupling component from the benzene or naphthalene series, and the rings in the coupling component D.sup.2 may furthermore be substituted by chlorine, methyl, methoxy, hydroxysulfonyl, aminosulfonyl, hydroxyl or acylamino, and metal complexes of such compounds, give very fast, brown dyeings, particularly on leather.