TMSCF
<sub>3</sub>
as a Convenient Source of CF
<sub>2</sub>
=CF
<sub>2</sub>
for Pentafluoroethylation, (Aryloxy)tetrafluoroethylation, and Tetrafluoroethylation
作者:Lingchun Li、Chuanfa Ni、Qiqiang Xie、Mingyou Hu、Fei Wang、Jinbo Hu
DOI:10.1002/anie.201705734
日期:2017.8.7
A new method for the on-site preparation of tetrafluoroethylene (TFE) and a procedure for its efficient use in pentafluoroethylation by fluoride addition were developed by using a simple two-chamber system. The on-site preparation of TFE was accomplished by dimerization of difluorocarbene derived from (trifluoromethyl)trimethylsilane (TMSCF3) under mild conditions. Other fluoroalkylation reactions
通过使用简单的两腔系统,开发了一种现场制备四氟乙烯(TFE)的新方法及其通过添加氟化物有效地用于五氟乙基化的方法。TFE的现场制备是通过在温和条件下将衍生自(三氟甲基)三甲基硅烷(TMSCF 3)的二氟卡宾进行二聚完成的。其他的氟烷基化反应,例如(芳氧基)四氟乙基化和四氟乙基化过程,也可以使用类似的方法来实现。这项工作不仅证明了在实验室中生成和使用TFE的便捷安全方法,而且为五氟乙基化提供了新的策略。