Photographic elements containing development accelerators and release compounds that release development inhibitors

A silver halide color reversal, black and white, or color negative photographic element comprising a support having located thereon at least one silver halide emulsion layer, the emulsion layer containing a development accelerator and release compound that provides a non-imagewise distribution of a development inhibitor moiety, the release compound comprising a blocking group from which the development inhibitor moiety is released, a ballasting group other than a coupler moiety, and an aqueous solubilizing group, both the ballasting group and the aqueous solubilizing group being attached to the blocking group, and not directly to the development inhibitor moiety, wherein:

• (a) the blocking group comprises an aromatic ring system which is unsubstituted or substituted with one or more electron withdrawing groups and, optionally, a timing group or series of timing groups from which the development inhibitor moiety is released;
• (b) the aqueous solubilizing group is attached, either directly or indirectly, to a timing group, or is attached indirectly through at least one carbon atom to the aromatic ring system;
• and
• (c) the active functionality of the development inhibitor moiety is a heteroatom which is blocked by direct attachment to a timing group or aromatic ring of the aromatic ring system.