title: Insight into the mechanism of oxidative kinetic resolution of racemic secondary alcohols by using manganese(III)(salen) complexes as catalysts.
abstract: The oxidative kinetic resolution of various racemic secondary alcohols with PhI(OAc)(2) catalyzed by chiral [Mn(III)(salen)] complexes in the presence of KBr was studied in a water/organic solvent mixture. The dramatic, synergetic effect of additives, organic solvent, and the substituents of chiral salen ligands on the enantioselectivities of the reactions is reported. Results from UV/Vis spectroscopy and ESI-MS studies provide evidence that these reactions are induced by the formation of a high-valent manganese intermediate.
authors.affiliation: State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000,, P. R. China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.forename: Zhong H
authors.initials: ZH
authors.lastname: Tang
authors.forename: Xiao X
authors.initials: XX
authors.lastname: Hu
authors.forename: Chun G
authors.initials: CG
authors.lastname: Xia