Half-sandwich nickel(II) complexes bearing 1,3-di(cycloalkyl)imidazol-2-ylidene ligands

Johnathon Yau, Kaarel E. Hunt, Laura McDougall, Alan R. Kennedy, David J. Nelson

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9 Citations (Scopus)
67 Downloads (Pure)


Two new nickel catalysts have been prepared using a convenient procedure where nickelocene, the NHC.HBF4 salts, and [Et4N]Cl were heated in THF using microwave irradiation. The resulting [NiCl(Cp)(NHC)] complexes are air- and moisture stable in the solid state, and represent two new members of this valuable and practical class of nickel catalyst. The new species were fully characterised using methods including NMR spectroscopy and X-ray crystallography. When tested in model Suzuki-Miyaura cross-coupling reactions, these complexes were found to be active for the cross-coupling of aryl bromides and aryl chlorides.
Original languageEnglish
Pages (from-to)2171-2178
Number of pages8
JournalBeilstein Journal of Organic Chemistry
Publication statusPublished - 12 Nov 2015


  • nickel
  • N-heterocyclic carbenes
  • cross coupling
  • catalysis

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