Benzotriazole based UV absorbing compounds and photographic elements containing them

摘要

Ultraviolet absorbing compounds of formula (I) and photographic elements containing such compounds: group; the benzo or phenyl ring shown may be further substituted or unsubstituted; L is a bivalent linking group; p is 0 or 1; A* is an alkyl group having an asymmetric carbon or silicon atom, and; wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.