Colour photographic material with new pyrazolo:azole magenta coupler

摘要

A colour photographic material comprising /- one silver halogenide emulsion layer with a magenta dye coupler of formula (I), where PAZ = gp. representing pyrazoloazole magenta coupler able to undergo chromogenic coupling; L1 = a link between PAZ and Ur; L2 = a link between Ur and a gp. of formula (i); Ur = -NH-CO-O- or -O-CO-NH-; R1 = substit(s).; and m = 0-4. Pref. in (I), PAZ comprises gps. of formula (1-4) or (1-5); R2, S, T = H, alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, amino, anilino, acylamino, cyano, alkoxycarbonyl, carbamoyl or sulphamoyl; with /- one of R2, S, and T in both (1-4) and (1-5) being a gp. of formula (ii), where X = H or a colour coupling splitting off gp. which contains a halogen atom or which is a cyclic gp. with O, S or N as the point of attachment; and L1, L2, Ur, R1, m = as before.