Basic thiazole-azo dyes

The invention comprises a basic dye having a cation of the formula <FORM:1018458/C4-C5/1> in which K denotes the radical of an amino compound capable of coupling or an enamine capable of coupling, X denotes an alkyl radical, an aryl radical, a hydroxyl group, an alkoxy group, an alkylamino rad...

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Bibliographic Details
Main Author LEUCHS DIETER
Format Patent
LanguageEnglish
Published 18.04.1967
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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Summary:The invention comprises a basic dye having a cation of the formula <FORM:1018458/C4-C5/1> in which K denotes the radical of an amino compound capable of coupling or an enamine capable of coupling, X denotes an alkyl radical, an aryl radical, a hydroxyl group, an alkoxy group, an alkylamino radical or an arylamino radical, R1 denotes an alphatic radical and R2 denotes an alkyl radical or an aryl radical and a process for the preparation thereof wherein an azo dye of the general formula <FORM:1018458/C4-C5/2> is alkylated. Azo dyes employed as starting materials are obtained by coupling appropriate diazotized aminothazoles with appropriate amines such as dimethylaniline, cyanethylacetoxyethylaniline or ethyl aminonaphthalene or appropriate enamines such as 1-methyl-2-phenylindole or 2-cyanomethyl-benzimidazole. Alkylating agents specified include dimethyl and diethyl sulphates, methyl toluene sulphonate and ethyl bromide. Many additional starting materials are specified. Examples are furnished. The dyes are suitable for dyeing silk, leather, hair, mordanted cotton, synthetic polyamides, cellulose esters and especially polymers and copolymers of acrylonitrile and dicyano-ethylene.
Bibliography:Application Number: US19630334599