M. Yamamoto et al., A HIGHLY DIASTEREOSELECTIVE SYNTHESIS OF ALPHA-SUBSTITUTED-BETA-HYDROXY COMPOUNDS FROM CORRESPONDING BETA-STANNYL COMPOUNDS, Chemistry Letters, (10), 1997, pp. 1035-1036
Anti-beta-stannyl-alpha-substituted carbonyl compounds were completely
converted to its syn-analogues, and each diastereomer was oxidized to
its beta-hydroxylated analogues with retention of the stereochemistry
.