A simple, one-pot method for the α-acyloxylation of carbonyl compds. that proceeded at room temp. in the presence of both moisture and air has been developed. Treatment of a variety of aldehydes and both cyclic and acyclic ketones with N-methyl-O-benzoylhydroxylamine hydrochloride provided the α-functionalized product in good isolated yield. The transformation was tolerant of a wide range of functional groups and, significantly, was regiospecific in the discrimination of secondary over primary centers in the case of nonsym. substrates.
- carbonyl compounds