Photographic element containing a DIR coupler

Abstract

This invention comprises a photographic element having a support bearing at least one silver halide emulsion and at least one DIR coupler of structure I: ##STR1## wherein: Z is a moiety which can react with oxidized developer to release a coupling-off group; R.sub.1 is selected from the substituents shown in formulas II, III, IV and V: II --SCH.sub.2 CO.sub.2 R.sub.2, III --NHCOR.sub.3, IV --OCH.sub.2 CO.sub.2 R.sub.4, V --OR.sub.5 ; R.sub.2 is an alkyl group with at least 3 carbon atoms or an aryl group with at least 7 carbon atoms; R.sub.3 is an alkyl or alkoxy group with at least 4 carbon atoms or an aryl or phenoxy group with at least 7 carbon atoms; and R.sub.4 and R.sub.5 are alkyl groups with at least 4 carbon atoms or aryl groups.

Dependencies are inferred from the claim text.