Mono- and bis-azo compounds containing 6-hydroxy-3-heterocyclic onium-pyridone-2-groupings coupled to diazo components containing diazine or triazine rings

US5175259A · kind A · utility

Assignee

• BASF SE

Inventors

• Joerg L. Jessen · Speyer, DE
• Manfred Ruske · Ludwigshafen, DE
• Knut Kessel · Mannheim, DE
• Manfred Patsch · Monsheim, DE

Key dates

• Filing date: Feb 28, 1992
• Grant date: Dec 29, 1992
• Expiry date: Feb 28, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/4411
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Reactive dyes of the formula ##STR1## where n is 1 or 2, PA0 X is a six-membered halogen-containing nitrogen heterocycle, PA0 L.sup.1, depending on n, is fluorine, chlorine, C.sub.1 -C.sub.4 -alkoxy, phenoxy, C.sub.1 -C.sub.4 -alkyl, substituted or unsubstituted phenyl or a bridge member which has one or two hydroxysulfonyl groups, PA0 D is the radical of a diazo component of the aniline or naphthalene series which has at least one hydroxysulfonyl group, PA0 L.sup.2 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, PA0 L.sup.3 is the cationic radical of an aromatic heterocycle which is linked to the pyridone ring via a nitrogen atom, and PA0 L.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl, with the proviso that the number of hydroxysulfonyl groups in the molecule exceeds that of the cationic groups by at least one, are useful for dyeing and printing hydroxyl- or nitrogen-containing substrates.