Azo dyes from sulfonated 3-sulfonated 3-amino-2,1-benzisothiazol

Details Azo dyes from sulfonated 3-sulfonated 3-amino-2,1-benzisothiazol Azo dyes from sulfonated 3-sulfonated 3-amino-2,1-benzisothiazol

1983-03-15

1985-07-23

Higel, Floyd D.

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

Organic compounds

Azo

534738, C09B 29045, C09B 29039, C09B 2936, C09B 2944

Patent

active

045309973

ABSTRACT:
Disclosed are azo dyes in which the diazo component is a diazotized 3-amino-2,1-benzisothiazole compound bearing one or two sulfo groups, and the coupler is either a 1,2,3,4-tetrahydroquinoline or a 2,3-dihydro-1,4-benzoxazine compound. These dyes exhibit excellent dyeing and fastness properties on polyamide fibers and also impart color to cellulose acetate fibers and wool. The dyes correspond to the general formula: ##STR1## wherein R.sup.5 is 0-3 substituents independently selected from halogen, cyano, alkyl, alkoxy, sulfo, and the like; M is H.sup.+, Na.sup.+, K.sup.+ or the like; and C is the coupler which may be substituted with groups known to the art.

REFERENCES:
patent: 4070352 (1978-01-01), Maner et al.
Venkataraman, "The Chemistry of Synthetic Dyes", vol. I, p. 270, (1952).

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