Acid azo dyes containing heterocyclic couplers

Details Acid azo dyes containing heterocyclic couplers Acid azo dyes containing heterocyclic couplers

1980-09-02

1983-08-02

Waltz, Thomas A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260153, 260154, 260155, 260156, 260157, 260165, C09B 2936, D06P 324, D06P 352

Patent

active

043965474

ABSTRACT:
Disclosed are novel acid azo dyes containing a sulfonated, sulfated or thiosulfated organothiothiadiazole azo moiety and a heterocyclic coupler which may be substituted. The dyes produce reddish-yellow to orange shades on, for example, hydrophobic textile fiber including polyesters, polyamides, and cellulose esters and have excellent fastness properties including lightfastness, stability to heat, washfastness and resistance to sublimation, and dye at unusually low energy levels. The dyes have the general formulae: ##STR1## wherein D is the aforesaid organothiothiadiazole moiety; R.sup.3 is selected from hydrogen, lower alkyl, and aryl; R.sub.4 is selected from H, lower alkyl, CH.sub.2 aryl, aryl, and lower alkyl substituted with cyano, carbamoyl or acylamino; Ar is a wide variety of carbocyclic radicals; and Z represents the atoms necessary to complete a five or six membered ring.

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Trotman, Dyeing and Chemical Technology of Textile Fibres, 3rd Ed., Griffin, London, 1964, p. 507.
Dillmann, "Melliand Textilberichte", 43-3/1962, p. 265.
von der Eltz, "Melliand Textilberichte", 46-3/1965, pp. 286-289.
Venkataraman, Ed., The Chemistry of Synthetic Dyes, vol. III, New York: Academic Press, 1970, pp. 27-28.
Venkataraman, Ed., The Chemistry of Synthetic Dyes, vol. VI, New York: Academic Press, 1972, pp. 27-29.

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