PROCESS FOR THE PREPARATION OF BIS-TRIAZOLYL STILBENES

Process for the preparation of bis-triazolylstilbene compounds which, in the form of the free acid, correspond to the formula wherein the phenyl radicals A can be substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, from bis-hydroxyiminohydrazonostilbene compounds of the formula characterized in tha...

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Bibliographische Detailangaben
Hauptverfasser:	NEUNER, OTTO, DORLARS, ALFONS
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ADHESIVES BLEACHING LEATHER OR FURS CHEMISTRY DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS DYES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR HETEROCYCLIC COMPOUNDS LAKES LAUNDERING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	Process for the preparation of bis-triazolylstilbene compounds which, in the form of the free acid, correspond to the formula wherein the phenyl radicals A can be substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, from bis-hydroxyiminohydrazonostilbene compounds of the formula characterized in that the bis-hyroxyiminohydrazonostilbene compounds are reacted with anhydrides of lower carboxylic acids in the presence of urea and polar solvents at temperatures from 10 DEG to 60 DEG C.