title: Ni(I) and Ni(II) ring-expanded N-heterocyclic carbene complexes: C-H activation, indole elimination and catalytic hydrodehalogenation.
abstract: Reaction of the bulky 6-membered N-heterocyclic carbene 6-Mes with Ni(cod)(2) gives a C-H activated 6-Mes nickel(II) complex, but the novel three-coordinate Ni(I) species Ni(6-Mes)(PPh(3))Br if the reaction is performed in the presence of Ni(PPh(3))(2)Br(2). The Ni(I) complex is a precursor for the catalytic hydrodehalogenation of aryl halides.
authors.affiliation: Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
authors.forename: Caroline J E
authors.initials: CJ
authors.lastname: Davies
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Page
authors.forename: Charles E
authors.initials: CE
authors.lastname: Ellul
authors.forename: Mary F
authors.initials: MF
authors.lastname: Mahon
authors.forename: Michael K
authors.initials: MK
authors.lastname: Whittlesey