Sol-gel immobilized Hoveyda-Grubbs complex through the NHC ligand: A recyclable metathesis catalyst

Amàlia Monge-Marcet, Roser Pleixats, Xavier Cattoën, Michel Wong Chi Man

Research output: Contribution to journalArticleResearchpeer-review

42 Citations (Scopus)

Abstract

The synthesis of a bis-silylated Hoveyda-Grubbs ruthenium alkylidene complex is described, as well as the preparation via the sol-gel process and the characterization of an organosilica by co-gelification with tetraethyl orthosilicate (TEOS). This material is an active supported catalyst for various metathesis reactions. The recyclability has been proven even for the formation of a trisubstituted olefin. This is the first example of an immobilized Hoveyda-Grubbs' type complex prepared by sol-gel co-gelification from a well-defined ruthenium alkylidene precursor bearing a silylated NHC moiety. © 2012 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)59-66
JournalJournal of Molecular Catalysis A: Chemical
Volume357
DOIs
Publication statusPublished - 1 May 2012

Keywords

  • Catalyst immobilization
  • Metathesis
  • NHC ruthenium complex
  • Organic-inorganic hybrid silica material
  • Sol-gel process

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