ChemInform Abstract: Preparation and C‐Alkylation of Enantiomerically Pure S‐Phenyl Aziridinecarbothioates. On the Structure of Small‐Ring Ester Lithium Enolates.

Abstract Reaction of the (S)‐amine (I) with the racemic dibromopropionate (II) yields both the diastereomers (III) and (VI), which are separated and converted to the thioesters (V) and (VII).