Metallacyclobutane substitution and its effect on alkene metathesis for propylene production over W-H/Al2O3: Case of isobutene/2-butene cross-metathesis

Kaï Chung Szeto, Etienne Mazoyer, Nicolas Merle, Sébastien Norsic, Jean-Marie Basset, Christopher P. Nicholas, Mostafa Taoufik

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Cross metathesis between 2-butenes and isobutene yielding the valuable products propylene and 2-methyl-2-butene has been investigated at low pressure and temperature using WH3/Al2O3, a highly active and selective catalyst. Two parallel catalytic cycles for this reaction have been proposed where the cycle involving the less sterically hindered tungstacyclobutane intermediates is most likely favored. Moreover, it has been found that the arrangement of substituents on the least thermodynamically favored tungstacyclobutane governs the conversion rate of the cross metathesis reaction for propylene production from butenes and/or ethylene. © 2013 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)2162-2168
Number of pages7
JournalACS Catalysis
Volume3
Issue number9
DOIs
StatePublished - Aug 23 2013

ASJC Scopus subject areas

  • Catalysis

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