ChemInform Abstract: Diastereoselectivity in Conjugate Addition of Alkylcuprates to Vinylogous Ester of N,O‐Diprotected Serinal.

Abstract The N,O‐diprotected serinal (I) is olefinated with the Wittig reagent (II) to give predominantly the E‐configurated α,β‐unsaturated ester (III).