Thiopheneazo dye based on a coupling component of the thiazole s

Details Thiopheneazo dye based on a coupling component of the thiazole s Thiopheneazo dye based on a coupling component of the thiazole s

1990-12-04

1993-06-01

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534573, 534581, 534582, 548193, 549 71, 549 73, 8536, C09B 29033, C09B 2936, D06P 118

Patent

active

052161390

ABSTRACT:
Thiopheneazo dyes of the formula ##STR1## where R.sup.1 is cyano, C.sub.1 -C.sub.4 -alkoxycarbonyl, phenylazo, phenylsulfonyl, formyl or the radical ##STR2## where R.sup.7 and R.sup.8 are independently of the other cyano or C.sub.1 -C.sub.4 -alkoxycarbonyl,

REFERENCES:
patent: 3770719 (1973-11-01), Fisher et al.
patent: 4619992 (1986-10-01), Bergmann et al.
patent: 4688775 (1987-05-01), Bergmann et al.

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