Azo dyes and process for the manufacture of [5-amino-2-(2-hydroxyethylamino)phenyl](2-hydroxyethyl)sulfone

A process for the preparation of the sulphone of the formula: (1) consists in reductive cleavage of azo/azoxy dyestuffs of the formula (6) The invention also relates to the azo/azoxy dyestuffs mentioned.

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Bibliographische Detailangaben
1. Verfasser:	HERD, KARL-JOSEF
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES
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Beschreibung
Zusammenfassung:	A process for the preparation of the sulphone of the formula: (1) consists in reductive cleavage of azo/azoxy dyestuffs of the formula (6) The invention also relates to the azo/azoxy dyestuffs mentioned.