Synthesis and structure of cobalt (II) iodide bearing a bulky N-heterocyclic carbene ligand, and catalytic activation of bromoalkanes

…, A Kumamoto, H Yamamoto, Y Koga, S Kawata

Index: Matsubara, Kouki; Kumamoto, Aya; Yamamoto, Hitomi; Koga, Yuji; Kawata, Satoshi Journal of Organometallic Chemistry, 2013 , vol. 727, p. 44 - 49

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Citation Number: 7

Abstract

A divalent cobalt iodine complex bearing 1, 3-bis (mesityl) imidazol-2-ylidene and pyridine ligands was synthesized and its structure was determined. The cobalt center has a typical d7- tetrahedral geometry, as expected. Catalytic application of this cobalt complex with bromoalkanes and Grignard reagents demonstrated high-yield formation of alkenes as a result of β-hydrogen elimination; in sharp contrast, the activation of alkyl halides was not ...