Photogeneration of a phosphonium alkylidene olefin metathesis catalyst

Andrey Y. Khalimon, Erin M. Leitao, Warren E. Piers

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Treatment of ruthenium carbide (H 2IMes)(Cl) 2(PCy 3)RuC (1) with the photoacid generator (PAG) [Ph 3S][OTf] (3) under 254 nm light results in a highly efficient catalyst for ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP) reactions. The reactions proceed via formation of the ruthenium phosphonium alkylidene complex [(H 2IMes)(Cl) 2Ru=C(H)PCy 3][OTf] as the active catalytic species. In the case of ROMP of cycloalkenes, reactions do not require addition of PAG and protonation of 1 proceeds via allylic C-H bond activation of the substrate under UV light.

Original languageEnglish
Pages (from-to)5634-5637
Number of pages4
JournalOrganometallics
Volume31
Issue number15
DOIs
Publication statusPublished - Aug 13 2012

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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