Efficient Enantioselective Synthesis of Methyl Esters of α-Unsubstituted β-Hydroxy Acids via Asymmetric Aldol-Type Addition of Chiral Boron Enolates of (Methylthio)acetic Acid to Aldehydes - Fringuelli, Francesco; Piermatti, Oriana; Pizzo, Ferdinando (Synthesis, 1996)