Preparation of highly enantiomerically pure linear secondary alcohols via asymmetric reduction of prochiral ketones with borane
作者:Jiaxi Xu、Xianbin Su、Qihan Zhang
DOI:10.1016/s0957-4166(03)00373-2
日期:2003.7
alcohols, via the asymmetricoxazaborolidine-catalyzedboranereduction of prochiral ketones is described. The phenomenon of the enantioselectivity of 1-(4-alkoxylphenyl) alcohols lower than that of 1-(4-alkylphenyl) alcohols was found and rationalized to the coordination of the oxygen atom in the alkoxy groups to the catalyst and borane. Based on the rationale, the enantioselectivity of 1-(4-alkoxylphenyl)