Novel Synthesis of (R)-(+)-γ-Butyrolactone-γ-3-propionates by Fermenting Baker's Yeast and Enantiomeric Purity Determination Using NMR Technique

Article abstract of DOI:10.1246/cl.1987.1141

Optically pure (R)-(+)-γ-butyrolactone-γ-3-propionates 1 were prepared by reducing the precourser, 3-ketoheptane-1,5-dicarboxylic acid monoesters, with fermenting baker's yeast.The optical purity (more than 98percent) was determined by means of HPLC analysis and NMR determination.