aGroupe de recherche de Physieochimie Structurale 3, associe´au CNRS, Universite´de Rennes I Campus de Beaulieu 35042 Rennes France.
Abstract:
N-unsubstituted diazaarsoles 4 undergo an N alkylation by reaction with sulfur ylides. N-substituted diazaarsoles 5 and 9 react with dimethylsulfoxonium ylide to give stable bicyclic arsiranes 11 and 12.