Catalytic applications of recyclable silica immobilized NHC-ruthenium complexes

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

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)

Abstract

A monosilylated Hoveyda-Grubbs ruthenium alkylidene has been prepared and grafted through the NHC ligand to a mesostructured silica, in refluxing toluene or at room temperature, giving two new organic-inorganic hybrid silica materials M2 and M3, respectively. While M3 exhibited good performances in several metathesis reactions, M2 showed good selectivity in the hydrosilylation of terminal alkynes, where the β-(Z)-vinylsilane was obtained as major product. Recycling of the supported catalysts without significant decrease in activity and selectivity was proven for at least three cycles in both transformations. © 2012 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)341-348
JournalTetrahedron
Volume69
Issue number1
DOIs
Publication statusPublished - 7 Jan 2013

Keywords

  • Alkyne hydrosilylation
  • NHC ruthenium alkylidene
  • Olefin metathesis
  • Organosilica
  • Supported catalysis

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