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

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; R , R , and R are independently selected alkyl groups, provided that any two of R , R an...

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Bibliographische Detailangaben
Hauptverfasser: ROMANET, ROBERT FOGG, KAPP, DANIEL LAWRENCE, BURNS, PAUL ANDREW, FISCHER, SUSAN MARIE, LINCOLN, DAVID GEORGE, SPARA, PAUL PATRICK, BALASUBRAMANIAN, RAJIV P
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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; R , R , and R are independently selected alkyl groups, provided that any two of R , R and R may join to form a ring; R is hydrogen or a substituent, provided that R and R may join to form a ring when R is a substituent; R is hydrogen or a substituent; Y is a substituent with at least one Y substituent having a formula selected from the group consisting of -CONRR, -NHCOR, and -SO2R, wherein R, R, and R are independently selected from the group consisting of H, alkyl, aryl, and heterocyclic groups and R is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, -NRR, and -OR wherein R, R, and R are selected from the same group as R and n is from 1 to 5. The element exhibits improved magenta dye light stability.