Photographic element containing a magenta coupler having improved manufacturability and dye light stability

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by Formula I: wherein X is hydrogen or a coupling-off group; and R' is a tertiary alkyl group and R'' represents the group in which 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; and W is a substituent having the formula: wherein R and R are independently selected from the group consisting of hydrogen, and alkyl or aryl groups;