(57) A photographic element comprises a light sensitive silver halide emulsion layer having
associated therewith an open chain α-carbonyl acetanilide yellow dye-forming coupler
having the formula:
wherein
R1 is selected from the group consisting of alkyl, aryl, heterocyclic, and amino groups,
provided that R1 may form a ring bonded to another carbon atom which is a member of Ring "A";
each R2 is independently selected from the group consisting of those substituents having
a Hammett's sigma value of 0 or less, and m is from 0 to 4;
each R3 and R4 for each of the n carbon atoms is independently selected from the group consisting
of hydrogen, alkoxy, aryl, heterocyclic, aryloxy, and alkyl groups, and n is 0 to
16;
each R5 is independently selected from the group consisting of halogen, amino, alkyl groups,
and groups linked to the "B" ring by oxygen or sulfur, and p is 1 to 3, provided that
two R5 groups may join to form a ring;
each L is independently a divalent linking group and q is 0 to 3; and
Ring "A" is bonded indirectly to the 3-, 4-, or 5-position of Ring "B",
R6 is selected from the group consisting of alkyl, aryl, and amino groups; and (1) when
an R5 is halogen, Z is hydrogen or a coupling-off group selected from the group consisting
of:
(a) an aryloxy or arylthio group;
(b) a heterocyclic group containing, in a five or six membered ring, one or two nitrogen
atoms, wherein the group Z is bonded to the remainder of the coupler through a nitrogen
atom in the ring; and
(c) a benzotriazole group wherein the group Z is bonded to the remainder of the coupler
through a nitrogen atom in the triazole group; and
(2) when no R5 is halogen, Z is hydrogen, or a group capable of coupling-off when the coupler reacts
with an oxidized color developing agent.
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