Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes

Ho NKT, Neumann B, Stammler H-G, Menezes da Silva VH, Watanabe DG, Braga AAC, Ghadwal R (2017)
DALTON TRANSACTIONS 46(36): 12027-12031.

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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.
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Ho NKT, Neumann B, Stammler H-G, et al. Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS. 2017;46(36):12027-12031.
Ho, N. K. T., Neumann, B., Stammler, H. - G., Menezes da Silva, V. H., Watanabe, D. G., Braga, A. A. C., & Ghadwal, R. (2017). Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS, 46(36), 12027-12031. doi:10.1039/c7dt03099a
Ho, N. K. T., Neumann, B., Stammler, H. - G., Menezes da Silva, V. H., Watanabe, D. G., Braga, A. A. C., and Ghadwal, R. (2017). Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS 46, 12027-12031.
Ho, N.K.T., et al., 2017. Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS, 46(36), p 12027-12031.
N.K.T. Ho, et al., “Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes”, DALTON TRANSACTIONS, vol. 46, 2017, pp. 12027-12031.
Ho, N.K.T., Neumann, B., Stammler, H.-G., Menezes da Silva, V.H., Watanabe, D.G., Braga, A.A.C., Ghadwal, R.: Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes. DALTON TRANSACTIONS. 46, 12027-12031 (2017).
Ho, Nga Kim T., Neumann, Beate, Stammler, Hans-Georg, Menezes da Silva, Vitor H., Watanabe, Daniel G., Braga, Ataualpa A. C., and Ghadwal, Rajendra. “Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes”. DALTON TRANSACTIONS 46.36 (2017): 12027-12031.
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