title: Difluorocarbene transfer from a cobalt complex to an electron-deficient alkene.
abstract: We report the synthesis of the trifluoromethyl cobalt(iii)tetraphenylporphyrinato 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 CF2transfer from Me3SiCF3to n-butyl acrylate becomes possible when directly using the divalent cobalt(ii) porphyrin catalysts in the presence of NaI.
authors.affiliation: Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands. W.I.Dzik@uva.nl b.debruin@uva.nl.
authors.forename: Monalisa
authors.initials: M
authors.lastname: Goswami
authors.forename: Bas
authors.initials: B
authors.lastname: de Bruin
authors.forename: Wojciech I
authors.initials: WI
authors.lastname: Dzik