Accessible syntheses of late transition metal (pre-)catalysts bearing N-heterocyclic carbene ligands

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Abstract

This microreview details and discusses some selected examples of the accessible syntheses of useful complexes bearing N-heterocyclic carbenes (NHCs). The term "accessible", as used here, is defined as a synthetic route that does not require the isolation of the free NHC. These routes typically rely on either the generation of low equilibrium concentrations of the free NHC, which is then trapped by a metal centre, the deprotonation of the azolium salt by a suitable ligand or the activation of the C–H bond. These approaches can help to overcome a key weakness of NHCs in that they must be handled under stringently inert conditions. Studies of complexes based on metal centres from groups 8–11 are presented and discussed.
Original languageEnglish
JournalEuropean Journal of Inorganic Chemistry
Early online date18 Mar 2015
DOIs
Publication statusPublished - 2015

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Bearings (structural)
Transition metals
Ligands
Catalysts
Metals
Deprotonation
Salts
Chemical activation
carbene

Keywords

  • synthetic methods
  • homogeneous catalysis
  • carbene ligands
  • transition metals

Cite this

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AB - This microreview details and discusses some selected examples of the accessible syntheses of useful complexes bearing N-heterocyclic carbenes (NHCs). The term "accessible", as used here, is defined as a synthetic route that does not require the isolation of the free NHC. These routes typically rely on either the generation of low equilibrium concentrations of the free NHC, which is then trapped by a metal centre, the deprotonation of the azolium salt by a suitable ligand or the activation of the C–H bond. These approaches can help to overcome a key weakness of NHCs in that they must be handled under stringently inert conditions. Studies of complexes based on metal centres from groups 8–11 are presented and discussed.

KW - synthetic methods

KW - homogeneous catalysis

KW - carbene ligands

KW - transition metals

UR - http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-0682c

UR - http://www.interscience.wiley.com/

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DO - 10.1002/ejic.201500061

M3 - Literature review

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

SN - 1434-1948

ER -