title: Nitrene Metathesis and Catalytic Nitrene Transfer Promoted by Niobium Bis(imido) Complexes.
abstract: We report a metathesis reaction in which a nitrene fragment from an isocyanide ligand is exchanged with a nitrene fragment of an imido ligand in a series of niobium bis(imido) complexes. One of these bis(imido) complexes also promotes nitrene transfer to catalytically generate asymmetric dialkylcarbodiimides from azides and isocyanides in a process involving the Nb(V)/Nb(III) redox couple.
authors.affiliation: Department of Chemistry, University of California , Berkeley, California 94720, United States.
authors.forename: Benjamin M
authors.initials: BM
authors.lastname: Kriegel
authors.affiliation: Department of Chemistry, University of California , Berkeley, California 94720, United States.
authors.forename: Robert G
authors.initials: RG
authors.lastname: Bergman
authors.affiliation: Department of Chemistry, University of California , Berkeley, California 94720, United States.
authors.forename: John
authors.initials: J
authors.lastname: Arnold
mesh_terms: D002384:Catalysis; D003500:Cyclization; D007097:Imines / Q000737:chemistry*; D009556:Niobium / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy; D014961:X-Ray Diffraction
chemical_list: D007097:Imines; D009556:Niobium; C017621:phenylnitrene