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Hydrocarbation chemistry proceeding from nickel carbenes
Hongyi Hou1, Peter K Gantzel, Clifford P Kubiak
1Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, USA.
Journal of the American Chemical Society
|August 9, 2003
Abstract:
Nickel carbene complex 2 [Ni(triphos)C(H)N(H)xylyl]2+(BF4-)2 reacts with alkenes quantitatively and regiospecifically to give the anti-Markovnikov hydrocarbation products. X-ray crystallography shows significant iminium alkyl character of the hydrocarbation products, similar to that observed in parent carbene 2. Mechanistic studies suggest the importance of a "hydride" pathway over "alkene" (metallocycle formation or carbocation) pathways.