Patent ID: 6191265
Filing Date: 2001-02-20
Classification: C07C,C09B,Y10S

Abstract:
A dye of the formula: ##STR31##whereinD is hetaryl or a radical of the formula (II) ##STR32##whereinX.sup.1 and X.sup.5 are independently is H, F, Cl, Br, --NO.sub.2, --CN, --CO.sub.2 B, --OH, --CHO or --CO--B,X.sup.2 and X.sup.4 are independently H, Cl, Br, NO.sub.2, or B,X.sup.3 is H, Cl, Br, --NO.sub.2, --CN, --SO.sub.2 B, --CO.sub.2 B, B or --CH.dbd.O,A is --CO-- or --SO.sub.2 --,B is optionally substituted C.sub.1 -C.sub.4 -alkyl,R.sup.1 and R.sup.2 are independently optionally OH-- or C.sub.1 -C.sub.4 -alkoxy-substituted C.sub.1 -C.sub.4 -alkyl, andR.sup.3 and R.sup.4 are independently H or CH.sub.3,with the proviso that A is SO.sub.2 when D is a 6-nitrobenzothiazolyl radical.