A Mild Method for the Efficient [3,3]-Sigmatropic Rearrangement of <i>N,O</i>-Diacylhydroxylamines
作者:Helen Rachel Lagiakos、Marie-Isabel Aguilar、Patrick Perlmutter
DOI:10.1021/jo901717a
日期:2009.10.16
A mild, general method for the [3,3]-sigmatropic rearrangement of N,O-diacylhydroxylamines, employing a combination of mild base and Lewis acid, is described. Employing stoichiometric amounts of reagents with respect to substrate provides alpha-acyloxyamides, whereas an excess of reagents favors formation of cyclic orthoamides.