Oxaziridine-mediated amination of branched allylic sulfides: stereospecific formation of allylic amine derivatives via [2,3]-sigmatropic rearrangement.

Reaction of branched allylic sulfides with the N-Boc-oxaziridine 1 results in [2,3]-sigmatropic rearrangement of the intermediate allylic N-Boc-sulfimides with a high level of chirality transfer. The first example of formation of a quaternary stereocenter using this transformation is reported.