Abstract
The enantioselective oxidation of olefins with OsO4 coordinated by chiral diamines derived from L-tartaric acid is described. Phenylketene dimethylacetal and trans-stilbene are converted to (R)-methyl mandelate and (1R,2R)-1,2-diphenyl-1,2-ethanediol with moderate and high enantioselectivity, respectively.