Nickel(II) N-Heterocyclic Carbene Complex for the Hydrogenation of 2-Acetylpyridine under Mild Conditions

Catalyst-mediated hydrogenation of ketones via hydride transfer can be directly used in the synthesis alcohols which exhibit great potential practical pharmaceuticals. The application Ni-NHC complexes is still limited. In a pursuit to study effect Ni-NHC-based reactivity towards hydrogenation, we have studied catalytic efficiency pendent-type nickel complex [Ni(NHC)2](PF6)2 constructed from benzimidazole moiety. 2-acetylpyridine was with respect catalyst loading, reaction temperature, time, and solvent medium. broadly characterized by X-ray crystallography, ESI-MS, NMR, UV-Vis, IR spectral studies.