Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivative

Details Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivative Azo dyes containing 2-amino-3-cyano-5-formylthiophene derivative

1986-03-24

1988-06-14

Higel, Floyd D.

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

Organic compounds

Azo

534573, 534753, 534887, C09B 29033, C09B 2909, D06P 118, D06P 354

Patent

active

047512881

ABSTRACT:
The compounds of the formula I ##STR1## where R is unsubstituted or substituted phenyl or naphthyl, R.sup.1 and R.sup.2 are each unsubstituted or substituted alkyl, alkenyl or cycloalkyl, and one of the radicals may furthermore be hydrogen, R.sup.3 is hydrogen, methyl, methoxy, ethoxy or chlorine, and R.sup.4 is acylamino, are particularly useful for dyeing polyesters.

REFERENCES:
patent: 4264495 (1981-04-01), Maher et al.
patent: 4507407 (1985-03-01), Kluger et al.
Research Disclosure 19826 (Oct. 1980), Seiten 425-427, Artikel Nr. 19826; "Discharge/Resist Printing of Synthetic Textile Materials Using Thiophene-Azo Disperse Dyestuffs in the Presence of Alkali", Spalten 1,2,3.

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