title: Hemiaminals as substrates for sulfur ylides: direct asymmetric syntheses of functionalised pyrrolidines and piperidines.
abstract: Phenyl stabilised chiral sulfur ylides react with five-membered-ring hemiaminals to give functionalised pyrrolidines directly with high enantioselectivity. The reaction can be diverted to give piperidines instead by isolation of the intermediate epoxide and treatment with TMSOTf.
authors.affiliation: School of Chemistry, University of Bristol, Bristol, UKBS8 1TS.
authors.forename: Christoforos G
authors.initials: CG
authors.lastname: Kokotos
authors.forename: Varinder K
authors.initials: VK
authors.lastname: Aggarwal