title: Dis-assembly of a benzylic CF3 group mediated by a niobium(III) imido complex.
abstract: All three C-F bonds in CF3-substituted arenes are activated by a niobium imido complex, driven by the formation of strong Nb-F bonds. The mechanism of this transformation was studied by NMR spectroscopy, which revealed the involvement of Nb(III). Attempts to extend this chemistry to nonaromatic CF3 groups led to intramolecular reactivity.
authors.affiliation: Department of Chemistry, University of California, Berkeley , California 94720, United States.
authors.forename: Thomas L
authors.initials: TL
authors.lastname: Gianetti
authors.forename: Robert G
authors.initials: RG
authors.lastname: Bergman
authors.forename: John
authors.initials: J
authors.lastname: Arnold
mesh_terms: D001593:Benzyl Compounds / Q000737:chemistry*; D005466:Fluorocarbons / Q000737:chemistry*; D007094:Imides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009556:Niobium / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D001593:Benzyl Compounds; D005466:Fluorocarbons; D007094:Imides; D009942:Organometallic Compounds; D009556:Niobium