photographic elements containing acylacetanilid - pimp in combination with a entwicklungsinhibitor release pimp

摘要

The present invention provides a photographic element comprising a support bearing a blue light sensitive silver halide emulsion layer containing an acylacetanilide yellow image dye-forming coupler having formula I: IMAGE I wherein: Ra is a substituted or unsubstituted alkyl, alkoxy, or aryloxy group; Rb is a substituted or unsubstituted alkyl or aryl group; Rc is hydrogen or a substituted or unsubstituted alkyl group; R1 is a substituent; R2 is selected from the group consisting of halogen, trifluoromethyl, and substituted or unsubstituted alkoxy and aryloxy; each R3 is bonded at the 4- or 5- position relative to the anilino nitrogen and is independently a substituent selected from the group consisting of halogen, alkoxycarbonyl (-CO2R), carbamoyl (-CONRR'), sulfonate (-OSO2R), sulfamoyl (-SO2NRR'), sulfonyl (-SO2R), trifluoromethyl, cyano, and sulfonamido (-NRSO2R'), in which each R and R' is independently hydrogen or a substituent; q is 1 or 2; R4and R5 are independently hydrogen or an alkyl group; and R6 is a substituent; n is an integer from 0 to (3-q); wherein the blue light sensitive silver halide emulsion layer has associated therewith a development inhibitor releasing coupler. The invention also provides a method of forming an image in such an element.