A Remarkably Efficient Fluoroalkylation of Cyclic Sulfates and Sulfamidates with PhSO2CF2H: Facile Entry into β-Difluoromethylated or β-Difluoromethylenated Alcohols and Amines
作者:Chuanfa Ni、Jun Liu、Laijun Zhang、Jinbo Hu
DOI:10.1002/anie.200603983
日期:2007.1.22
Enantioselective Synthesis of Cyclic Sulfamidates via Pd-Catalyzed Hydrogenation
Using Pd(CF3CO2)(2)/(SS)-f-binaphane as the catalyst, an efficient enantioselective synthesis of cyclic sulfamidates was developed via asymmetric hydrogenation of the corresponding cyclic imines in 2,2,2-trifluoroethanol at room temperature with high enantioselectivities (up to 99% ee).