Rhenium(VII) oxide/aluminum oxide: More experimental evidence for an oxametallacyclobutane intermediate and a pseudo-Wittig initiation step in olefin metathesis

Alain Salameh, Christophe Copéret*, Jean-Marie Maurice Basset, Volker P.W. Böhm, Michael Róper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Reactivity studies of the rhenium(VII) oxide/aluminum oxide olefin metathesis catalyst with various olefins show that initiation does not require an olefin with an allylic C-H bond, and therefore probably takes place via a pseudo-Wittig reaction. While it does not react with ethene in the absence of propene, Re2O7/Al2O3 catalyses the self-metathesis of Z-stilbene and its cross-metathesis with ethene.Additionally, reaction of Re2O7/Al2O3 with Z-2-butene followed by 13C di-labelled ethene shows that it contains only 2% of active sites.

Original languageEnglish (US)
Pages (from-to)238-242
Number of pages5
JournalAdvanced Synthesis and Catalysis
Volume349
Issue number1-2
DOIs
StatePublished - Jan 1 2007

Keywords

  • Initiation
  • Olefin metathesis catalyst
  • Pseudo-Wittig reaction
  • Rhenium(VII) oxide/aluminum oxide

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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