Chiral Oxazaborolidinone-Mediated Enantioselective Ring-Cleavage Reaction of a Mixture of Diastereomeric 1,3-Dioxolane Acetals: Application to Asymmetric Desymmetrization of meso-1,2-Diols
31 December 2001 (online)
Ring-cleavage reaction of a mixture of diastereomeric dioxolane acetals syn- and anti-1b-e proceeds in an enantiodifferentiating manner in the presence of chiral Lewis acid 2. The reaction is utilized as a key step in asymmetric desymmetrization of meso-1,2-diols.
asymmetric synthesis - acetals - cleavage - diols - Lewis acids