Aza‐MIRC Reactions of Sulfonyl‐Activated Hydroxycarbamates with α,β‐Difunctionalised Acrylates

Highly functionalised aziridines are readily obtained in high yields (up to 95%) under mild conditions from the reaction of trisubstituted olefins bearing different groups with nosyloxycarbamates in the presence of calcium oxide. We propose a possible explanation for the different reactivities observed between these olefins and the aminating agents. Reagent‐controlled stereoselective amination reactions led to the expected products with high conversions and purities. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)