Structure-reactivity relationship in alkane metathesis using well-defined silica-supported alkene metathesis catalyst precursors

Frédéric Blanc, Jean Thivolle-Cazat, Jean-Marie Maurice Basset, Christophe Copéret*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Alkane metathesis can be performed by using well-defined silica-supported alkene metathesis catalyst precursors as long as the coordination sphere of the metal centre contains both alkyl and alkylidene groups, such as in [(≡SiO)Mo(≡NAr)(=CHtBu)-(CH2tBu)]. This system transforms mainly linear alkanes, from propane to hexane, into their lower and higher homologues. Mechanistic studies clearly show that alkene metathesis is a key step of this reaction and also suggest that this system is a single-site single-component system, namely, alkenes are formed and transformed on one site, which is in contrast to that observed with a mixture of catalysts.

Original languageEnglish (US)
Pages (from-to)9030-9037
Number of pages8
JournalChemistry - A European Journal
Volume14
Issue number29
DOIs
StatePublished - Oct 10 2008

Keywords

  • Alkanes
  • Alkenes
  • Metathesis
  • Molybdenum
  • Rhenium

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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