Spiro Asymmetric Induction. 3. Synthesis of Optically Pure Syn or Anti α,β-Dihydroxy Esters by the Aldol Condensation of Chiral Glycolate Enolates

Article abstract of DOI:10.1021/jo00390a044

The diastereoselectivity of the aldol condensation of the chiral glycolate enolates 1 and 2 is metaltunable, providing either syn or anti adducts 3-6.Ethanolysis of these adducts then provides any stereoisomer of the α,β-dihydroxy esters 7-10 in optically