Stereoselective Formation of (E)-β-Alkoxy Acrylates from Fischer Carbene Complexes and Chelated Amino Acid Ester Enolates
作者:Uli Kazmaier、Rupsha Chaudhuri
DOI:10.1055/s-0033-1340496
日期:——
Chelated amino acid esterenolates react with alkyl Fischer carbene complexes via nucleophilic attack on the electrophilic carbene center. Subsequent elimination of the metal fragment and trifluoroacetamide results in the formation of β-alkoxy-α,β-unsaturated esters in a highly E -stereoselective fashion.