Copper-Mediated Di- and Monofluoromethanesulfonylation of Arenediazonium Tetrafluoroborates: Probing the Fluorine Effect
作者:Bo Xing、Chuanfa Ni、Jinbo Hu
DOI:10.1002/cjoc.201700748
日期:2018.3
A copper‐mediated di‐ and monofluoromethanesulfonylation of arenediazonium tetrafluoroborates using di‐ and monofluoromethanesulfinate reagents provides aryl difluoromethyl (or monofluoromethyl) sulfones in good yields. It was found that the relative reactivity of these sodium fluoroalkanesulfinates in the present reactions decreases in the following order: CH2FSO2Na > CF2HSO2Na > CF3SO2Na.
使用二氟甲烷磺酸和单氟甲烷磺酸盐试剂进行的铜介导的四氟硼酸壬二唑鎓的二氟甲烷磺酸和一氟甲烷磺酸磺酰化反应可提供高收率的芳基二氟甲基(或单氟甲基)砜。已发现这些氟代链烷磺酸亚钠在本反应中的相对反应性按以下顺序降低:CH 2 FSO 2 Na> CF 2 HSO 2 Na> CF 3 SO 2 Na。