Heterocyclic azo dyes containing cyanothiophene derivatives as d

Details Heterocyclic azo dyes containing cyanothiophene derivatives as d Heterocyclic azo dyes containing cyanothiophene derivatives as d

1988-04-28

1989-08-08

Higel, Floyd D.

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

Organic compounds

Azo

534573, 534733, C09D 1102, C09B 2936, D06P 102

Patent

active

048554138

ABSTRACT:
The novel dyes of the general formula I ##STR1## where X is hydrogen or C.sub.1 14 C.sub.4 -alkyl or is phenyl which is unsubstituted or substituted by fluorine, chlorine, bromine, methyl, methoxy or nitro, Y is cyano, a carboxylic ester group or nitro, Z is cyano, acetyl, benzoyl or unsubstituted or substituted carbamyl, or X and Z or Y and Z may simultaneously be a carboxylic ester group, and R.sup.1 and R.sup.2 independently of one another are each hydrogen or unsubstituted or substituted alkyl or aryl, are very useful for dyeing polyesters, polyester/cellulose blends or thermoplastics.

REFERENCES:
patent: 3853895 (1978-05-01), Lamm et al.
patent: 3998802 (1976-12-01), Dehnert et al.
patent: 4016152 (1977-04-01), Dehnert et al.
patent: 4042578 (1972-08-01), Dehnert et al.
patent: 4092329 (1978-05-01), Jotterand
patent: 4108867 (1978-08-01), Baird et al.
patent: 4128545 (1978-12-01), Dehnert et al.
patent: 4264495 (1981-04-01), Maher et al.

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