Highly efficient catalytic asymmetric acylation of meso-1,2-diols with benzoyl chloride in the presence of a chirai diamine combined with Et3N

Abstract Catalytic asymmetric acylation of meso -1,2-diols has been successfully performed by the reaction with benzoyl chloride in the presence of 0.5 mol% of chiral diamine derived from ( S )-proline combined with a stoichiometric amount of triethylamine to give the corresponding monobenzoate with good to excellent enantioselectivities.