Oxidative deamination of benzyl amines is achieved using a Ni(II)–NHC catalyst with water in aqueous medium. The product is an aldehyde, wherein water acts as a formal oxidant. Hemilabile pyridyl units embedded in the catalyst allow the approach of amine to the metal and promotes nucleophilic water attack on the metal-bound imine. A water-soluble 3d-metal Ni(II) catalyst bearing promoter ligands opens up a new avenue for water-mediated oxidation reactions.
N. K. Pal, K. Singh, M. Patra, S. Yadav, P. K. Pandey and J. K. Bera, Green Chem., 2023, 25, 6212 DOI: 10.1039/D3GC00672G
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