| 摘要 |
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a yellow dye-forming coupler having the formula: <IMAGE> wherein X, Y, Z, W are independently selected from the group consisting of H, alkyl, aryl, halogen, alkoxy and aryloxy groups, provided that X and W may join to form a saturated ring; Each A is selected from the group consisting of halogen, alkoxy and aryloxy groups; m is an integer from 1 to 3; each B is independently selected from the group consisting of -C(O)OR2 and -NHSO2R3 wherein R2 and R3 are independently selected from the group consisting of alkyl and aryl groups; n is an integer from 1 to 3; and R1 is a substituent group.
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