Light sensitive photographic material containing development inhibitor releasing compounds

摘要

A light-sensitive photographic material is provided which comprises, coated on a photobase, at least one silver halide emulsion layer, said emulsion layer or a layer adjacent thereto containing a development inhibitor releasing compound of the formula wherein R1 is substituted phenyl which contains a ballasting alkyl group, R2 represents the atoms necessary to complete a five or six membered heterocyclic ring system which may be further substituted and R3 is an aryl or heterocyclic radical, any of which ring systems may be further substituted, the group -S-R3 being a development inhibiting group.