Polyisobutylene-anchored n-heterocyclic carbene ligands

Chayanant Hongfa, Haw Lih Su, Hassan S. Bazzi, David E. Bergbreiter

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58 Citations (Scopus)


(Figure Presented) The synthesis of polyisobutylene (PIB)-supported N-heterocyclic carbenes (NHCs) that are useful as ligands for recoverable/recyclable organometallic complexes is described. Both PIB-bound carbenes analogous to SIMes and IMes as well as carbene precursors bound to PIB via 1,2,3-triazoles by alkyne-azide couplings are described. Both Ag(I) and Ru(II) complexes of these carbenes are shown to be phase selectively soluble in heptane. Hoveyda-Grubbs second-generation catalysts containing a PIB-supported NHC have also been used to catalyze ring-closing metathesis.

Original languageEnglish
Pages (from-to)665-667
Number of pages3
JournalOrganic Letters
Issue number3
Publication statusPublished - 5 Feb 2009


ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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