Azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyan

Details Azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyan Azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyan

1981-10-26

1983-07-26

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, C09B 2902, C09B 2936

Patent

active

043953689

ABSTRACT:
Disclosed are novel azo dyes from 2-amino-5-organothio-1,3,4-thiadiazoles and N-cyanoethyl-m-acylamidoanilines. These dyes are useful for dyeing synthetic hydrophobic fibers and particularly polyester. The dyes have the general formula: ##STR1## wherein R is alkyl, aryl or cycloalkyl; X is hydrogen, or alkyl; R.sub.1 is hydrogen, alkyl or aralkyl; and R.sub.2 is formyl or alkanoyl; and wherein the alkyl, aryl and cycloalkyl moieties of R and R.sub.2 may be substituted with a large variety of groups such as --OH, OOC-alkyl, --COO-alkyl, succinimido, phthalimido, alkoxy, carbamoyl and the like.

REFERENCES:
patent: 3657187 (1972-04-01), Weaver et al.
patent: 3770370 (1973-11-01), Weaver et al.
patent: 3910874 (1975-10-01), Lange
patent: 4259236 (1981-03-01), Koller et al.
patent: 4282144 (1981-08-01), Weaver et al.

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