magenta bildfarbstoff - pimp with improved hue

摘要

A photographic element and process provide a magenta coupler of formula (I) 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; (b) the substituents X1, X2, R1, R2 and R3 not selected from the (a) group may be selected from alkyl, alkoxy, aryloxy, acylamino, alkylthio, arylthio, sulfonamido, alkylureido, arylureido, alkoxycarbonylamino, aryloxycarbonylamino, and halogen and in the case of R3 hydrogen; (c) substituents R1 and R2 are para or meta to the carbon attached to the nitrogen atom; (d) a and b are 1 to 3; (e) Q is an alkylthio or arylthio coupling-off group. The element provides a deeper magenta hue and reduced blue absorption by the resulting magenta dye.