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Issue 36, 2017
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Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes

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Abstract

A highly efficient nickel catalysed method for the direct C2-arylation of N-heterocyclic carbenes (NHCs) is reported. This protocol enables a facile access to C2-arylated imidazolium salts (NHC–Ar)X (X = Cl, Br, I or OTf). Experimental and theoretical studies suggest the viability of a Ni(I)/Ni(II) catalytic pathway in which the dinuclear Ni(I) species [(NHC)NiX]2 plays a key role.

Graphical abstract: Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes

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Publication details

The article was received on 21 Aug 2017, accepted on 21 Aug 2017 and first published on 23 Aug 2017


Article type: Communication
DOI: 10.1039/C7DT03099A
Citation: Dalton Trans., 2017,46, 12027-12031
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    Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes

    N. K. T. Ho, B. Neumann, H. Stammler, V. H. Menezes da Silva, D. G. Watanabe, A. A. C. Braga and R. S. Ghadwal, Dalton Trans., 2017, 46, 12027
    DOI: 10.1039/C7DT03099A

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