Stereoselective synthesis of trans-disubstituted-β-lactams from N-phenylsulfenylimines
摘要:
N-Phenylsulfenylimines derived from aliphatic, aromatic and heteroaromatic aldehydes act as nucleophilic partners in the Staudinger reaction with acetoxyacetyl chloride. Disubstituted-beta-lactams are obtained with a surprisingly high trans diastereoselection (up to 99%). (c) 2007 Published by Elsevier Ltd.