Asymmetric synthesis of enantiopure (+)-(1S,2S) methyl 2-formylcyclopropanecarboxylate and corresponding (Z) and (E) didehydroamino acid derivatives

Article abstract of DOI:10.1016/0957-4166(95)00060-3

The title cyclopropane aldehyde and didehydroamino acids have been synthesised from (S)-(+)-γ-butyrolactone-γ-carboxylic acid as a chiral precursor.