Highly Diastereoselective Conjugate Addition of Carbon Nucleophiles to a Chiral Oxygenated α,β-Unsaturated δ-Lactone. A Straightforward Synthesis of Functionalized Branched-Chain l-Sugars

Abstract

Highly functionalized chiral, enantiomerically pure, molecules are useful intermediates for the EPC synthesis of natural products and pharmacologically active compounds. The stereocontrolled synthesis of these chiral building blocks is an important objective in organic chemistry.