Nitrogen and/or sulfur containing heterocyclic azo dyes with ani

Details Nitrogen and/or sulfur containing heterocyclic azo dyes with ani Nitrogen and/or sulfur containing heterocyclic azo dyes with ani

1979-03-30

1981-03-10

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260141, 260155, 260156, 260157, 260158, 260162, 260163, 260208, 260458C, 544105, 546172, C09B 2908, C09B 2926, C09B 2936, D06P 324

Patent

active

042553261

ABSTRACT:
Disclosed are azo dyes prepared by diazotizing heterocyclic amines such as 2-aminobenzothiazole, 3-amino-2,1-benzisothiazole, 5-amino-1,2,4-thiadiazole, 5-aminoisothiazole, 5-aminopyrazole, 2-aminothiophene and 2-amino-1,3,4-thiadiazole, followed by coupling with certain aniline, tetrahydroquinoline, or benzomorpholine compounds containing sulfate groups. These amines may be substituted with a large variety of groups including lower alkyl, lower alkoxy, cyano, carbamoyl, sulfamoyl, and halogen. These dyes have excellent dyeing properties on polyamide fibers and also impart color to cellulose acetate fibers and wool.

REFERENCES:
patent: 2659719 (1953-11-01), Dickey et al.
patent: 3586663 (1971-06-01), Kruckenberg

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