Nucleophilic Difluoro(phenylsulfonimidoyl)methylation of Unactivated Alkyl Bromides with PhSO(NTBS)CF<sub>2</sub>H: Facile Entry into<i>gem</i>-Difluoroalkenes
作者:Xiao Shen、Qinghe Liu、Chuanfa Ni、Jinbo Hu
DOI:10.1002/cjoc.201400403
日期:2014.8
An efficient nucleophilicdifluoro(phenylsulfonimidoyl)methylation of unactivated primary alkylbromides with PhSO(NTBS)CF2H has been developed. It is particularly remarkable that, when 1.5 equiv. of alkylbromides are used, the substitution products are obtained in moderate to excellent yields. The prepared difluoro(phenylsulfonimidoyl)methylated alkanes can be readily transformed to gem‐difluoroalkenes