Difluorocarbene transfer from a cobalt complex to an electron-deficient alkene

作者：Goswami Monalisa; de Bruin Bas; Dzik Wojciech I

来源：Chemical communications, 2017, 53(31): 4382-4385.

DOI：10.1039/c7cc01418j

We report the synthesis of the trifluoromethyl cobalt(III) tetraphenyl-porphyrinato complex [Co(TPP)CF3], which loses fluoride upon one-electron reduction and transfers a difluorocarbene moiety to n-butyl acrylate to produce the corresponding gem-difluorocyclopropane. Catalytic CF2 transfer from Me3SiCF3 to n-butyl acrylate becomes possible when directly using the divalent cobalt(II) porphyrin catalysts in the presence of NaI.

• 出版日期2017-4-21