Magenta image-dye couplers of improved hue

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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Details

430504, 430383, 430387, G03C 108, G03C 726, G03C 732

Patent

active

052565289

ABSTRACT:
A photographic element and process provide a magenta coupler of the formula: ##STR1## wherein (a) at least one of X1, X2 and R1 and at least one of R2 and R3 is a substituent individually selected from carbamoyl, alkoxycarbonyl, aryloxycarbonyl, sulfamoyl, alkylsulfonyl, arylsulfonyl, alkoxysulfonyl, aryloxysulfonyl, alkylsulfoxyl, arylsulfoxyl, acyloxy, cyano, nitro, and trifluoromethyl;

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patent: 4942116 (1990-07-01), Renner
patent: 4994359 (1991-02-01), Morigaki et al.

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