Substituted 5-acyl-3-carbamoyl-2-thienyl azo dyes with aniline,

Details Substituted 5-acyl-3-carbamoyl-2-thienyl azo dyes with aniline, Substituted 5-acyl-3-carbamoyl-2-thienyl azo dyes with aniline,

1981-11-04

1983-08-23

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260154, 260155, 260156, 260157, 260158, 544105, 546178, 546179, 546181, 549 68, 549 84, C09B 29033, C09B 2909, C09B 2934, C09B 2944

Patent

active

044003188

ABSTRACT:
Disclosed are azo compounds having the formula ##STR1## in which R.sup.4 is straight or branched lower alkylene, Z is 1-3 groups selected from such heteroatom groups as --OH, lower alkanoyloxy, lower alkoxy, lower alkoxycarbonyl, lower alkoxyalkoxy, mono- or dialkylamino, --CN, carbamoyl, formamide, lower alkyl substituted carbamoyl, lower alkoxycarbonylamino, lower alkanoylamino, hydroxy substituted lower alkoxy, halogen, lower alkylthio, lower alkylsulfonyl, and various heterocyclic groups such as furyl and pyrrolidono, R is selected from straight or branched lower alkyl, phenyl and phenyl substituted with straight or branched lower alkyl, halogen, or straight or branched lower alkoxy, R.sup.2 is hydrogen or lower alkyl, and A is an aniline, tetrahydroquinoline, or benzomorpholine coupler component which may be substituted with a wide variety of groups. These azo compounds produce red to blue shades on polyamide, polyester and cellulose acetate fibers and exhibit markedly improved properties such as fastness and dyeability, particularly on synthetic polyamide fibers.

REFERENCES:
patent: 2805218 (1957-09-01), Towne et al.
patent: 2827450 (1958-03-01), Towne et al.
patent: 4055556 (1977-10-01), Aeberli
patent: 4079450 (1978-03-01), Baird et al.
patent: 4140683 (1979-03-01), Weaver et al.
Eugster et al., (I), Index Chemicus, vol. 8, No. 1, #24199 (1963).
Eugster et al., (II), Chemical Abstracts, vol. 58, 5608-5609 (1963).

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