1565872-06-1Relevant academic research and scientific papers
One-pot, single-step, and gram-scale synthesis of mononuclear [(η6-arene)Ni(N-heterocyclic carbene)] complexes: Useful precursors of the Ni0-NHC unit
Hoshimoto, Yoichi,Hayashi, Yukari,Suzuki, Haruka,Ohashi, Masato,Ogoshi, Sensuke
, p. 1276 - 1282 (2014)
Recently, the combination of Ni(0) and N-heterocyclic carbenes (NHCs) has been paid special attention because of its high reactivity toward bond-forming reactions and the activation of unreactive bonds. Thus, it would be very worthwhile to provide a highly reactive, easily accessible, and versatile Ni0-NHC precursor. Herein we report a one-pot, single-step, and gram-scale method for the synthesis of [(η6-arene)Ni(NHC)] complexes from commercially available Ni(cod)2 and NHC (or its salt) via hydrogenation of COD. The structure and bonding situations of [(η6-arene)Ni(NHC)]s were evaluated by NMR, X-ray, and DFT studies. An application to the synthesis of Ni0-NHC complexes via ligand exchange reactions is also demonstrated.
