Ni(I) and Ni(II) ring-expanded N-heterocyclic carbene complexes: C-H activation, indole elimination and catalytic hydrodehalogenation.
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.
Davies
Caroline J E
CJ
Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Page
Michael J
MJ
Ellul
Charles E
CE
Mahon
Mary F
MF
Whittlesey
Michael K
MK