Silver halide photographic light-sensitive material containing a compound capable of imagewise releasing a photographically useful group during development

Abstract

A silver halide photographic material is disclosed. The material comprises a support and at least one silver halide emulsion layer formed thereon, in which said emulsion layer or other layer contains a compound represented by formula (I) ##STR1## wherein X represents an atomic group capable of releasing (Time).sub.t PUG by undergoing an oxidation-reduction reaction with CA.dbd.CR.sub.1 --CR.sub.2).sub.n C.sub.B ; C.sub.A and C.sub.B each represents a carbon atom; n represents an integer of 0, 1, 2, or 3; R.sub.1 and R.sub.2 each a hydrogen atom or a group substitutable for a hydrogen atom; EWG represents an electron withdrawing group having a Hammett's .sigma. para value greater than 0.3; --Time).sub.t PUG represents a group bonded to C.sub.B through an oxygen atom thereof; Time represents a timing group; t represents 0 or 1; and PUG represents a photographically useful group.

Dependencies are inferred from the claim text.