作者:Cory S. Beshara、Adrian Hall、Robert L. Jenkins、Kerri L. Jones、Teyrnon C. Jones、Niall M. Killeen、Paul H. Taylor、Stephen P. Thomas、Nicholas C. O. Tomkinson
DOI:10.1021/ol052474e
日期:2005.12.1
A simple, one-pot method for the alpha-acyloxylation of carbonyl compounds that proceeds at room temperature 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 provides the alpha-functionalized product in 69-92% isolated yield. The transformation is tolerant of a wide range of functional groups and, significantly, is reglospecific in the discrimination of secondary over primary centers in the case of nonsymmetrical substrates.