Nucleophilic Difluoromethylation of Epoxides with PhSO(NTBS)CF<sub>2</sub>H by a Preorganization Strategy
作者:Xiao Shen、Qinghe Liu、Tao Luo、Jinbo Hu
DOI:10.1002/chem.201402506
日期:2014.5.26
synthesis of β‐monofluoromethyl alcohols by nucleophilic monofluoromethylation of epoxides, the synthesis of β‐difluoromethyl alcohols by nucleophilicdifluoromethylation of epoxides still remains a challenge. Herein, studies on tackling this problem with PhSO(NTBS)CF2H (2; TBS=tert‐butyldimethylsilyl) are reported. The preorganization of 2 and epoxides with BF3⋅Et2O was found to be crucial for the