Photographic element having improved magenta dye light stability and process for its use

摘要

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: wherein X is hydrogen or a coupling-off group; R1, R2, and R3 are independently selected alkyl groups, provided that any two of R1, R2, and R3 may join to form a ring; R4 is hydrogen or a substituent, provided that R3 and R4 may join to form a ring when R4 is a substituent; Ra is hydrogen or a substituent; Y is a substituent with at least one Y substituent having a formula selected from the group consisting of -CONRbRc, -NHCORd, and -SO2Re, wherein Rb, Rc, and Rd are independently selected from the group consisting of H, alkyl, aryl, and heterocyclic groups and Re is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, -NRgRh, and -ORi wherein Rg, Rh, and Ri are selected from the same group as Ra and n is from 1 to 5. The element exhibits improved magenta dye light stability.