Trimethylsilyl fluorosulfonyldifluoroacetate (TFDA): a new, highly efficient difluorocarbene reagent
作者:William R Dolbier、Feng Tian、Jian-Xin Duan、An-Rong Li、Samia Ait-Mohand、Olivia Bautista、Saiwan Buathong、J Marshall Baker、Jen Crawford、Pauline Anselme、Xiao Hong Cai、Aneta Modzelewska、Henryk Koroniak、Merle A Battiste、Qing-Yun Chen
DOI:10.1016/j.jfluchem.2003.12.002
日期:2004.3
TFDA is readily prepared from the reaction of fluorosulfonyldifluoroacetic acid with trimethylsilyl chloride, and it is a very effective and efficient source of difluorocarbene for use in addition reactions to alkenes of a broad scope of reactivities. Acid-sensitive substrates may require an additional purification step involving treatment of the distilled TFDA with sufficient Et3N to remove the acid