Published in
Royal Society of Chemistry, Dalton Transactions, 36(46), p. 12027-12031, 2017
DOI: 10.1039/c7dt03099a
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Nickel-catalysed direct C2-arylation of N-heterocyclic carbenes
Journal article published in 2017 by
Nga Kim T. Ho,
Beate Neumann,
Hans-Georg Stammler,
Vitor H. Menezes da Silva 
,
Daniel G. Watanabe,
Ataualpa A. C. Braga ,
Rajendra S. Ghadwal
,
Daniel G. Watanabe,
Ataualpa A. C. Braga ,
Rajendra S. Ghadwal
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Abstract
Direct C2-arylation of NHCs to C2-arylated imidazolium salts (III) is achieved using Ni-catalysis. The dinuclear Ni(i) species I undergoes oxidative addition with ArX to give the Ni(ii) intermediate II. Reductive elimination delivers the arylation product III and regenerates the catalyst I.