DFT Investigation of the Palladium-Catalyzed Ene-Yne Coupling

Signe Teuber Henriksen, David Ackland Tanner, T. Skrydstrup, P.O. Norrby

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The mechanism of the recently developed palladium-catalyzed ene-yne coupling has been evaluated by DFT methods. The calculations validate the previously proposed reaction mechanism and explain the stereoselectivity of the reaction (exclusive formation of the E isomer of the disubstituted alkene). Concerning chemoselectivity, the calculations also clarify why the ene-yne coupling is able to dominate over plausible alternative reaction pathways such as alkene homocoupiing and alkyne polymerization. The role of the phosphine ligand at various stages of the catalytic cycle has also been delineated.
Original languageEnglish
JournalChemistry: A European Journal
Volume16
Issue number31
Pages (from-to)9494-9501
ISSN0947-6539
DOIs
Publication statusPublished - 2010

Keywords

  • reaction mechanisms
  • ene-yne coupling
  • palladium
  • density functional calculations
  • homogeneous catalysis

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