The [2,3] sigmatropic rearrangement of N-benzyl-O-allylhydroxylamines
作者:Stephen G. Davies、John F. Fox、Simon Jones、Anne J. Price、Miguel A. Sanz、Thomas G. R. Sellers、Andrew D. Smith、F??tima C. Teixeira
DOI:10.1039/b205323n
日期:2002.7.26
The rearrangement of a range of N-benzyl-O-allylhydroxylamines to the corresponding N-allylhydroxylamines upon treatment with n-BuLi in THF, followed by reduction to the corresponding N-allylamines, is described. Mechanistic studies of the transformation are consistent with an intramolecular [2,3] sigmatropic rearrangement.
The reaction of O-allyl hydroxylamines with phenylselenenyl sulfate, generated from the oxidation of diphenyl diselenide with ammonium persulfate, easily affords N-alkyl isoxazolidines as the result of a cyclization reaction through the formation of a carbon-nitrogen bond.