Photogeneration of a phosphonium alkylidene olefin metathesis catalyst

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

Research output: Contribution to journalArticle

15 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
Externally publishedYes

Fingerprint

alkylidene
Ruthenium
metathesis
Ring opening polymerization
Alkenes
alkenes
Cycloparaffins
catalysts
ruthenium
Catalysts
rings
Protonation
generators
polymerization
Ultraviolet radiation
Carbides
Chemical activation
closing
carbides
Substrates

ASJC Scopus subject areas

  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Photogeneration of a phosphonium alkylidene olefin metathesis catalyst. / Khalimon, Andrey Y.; Leitao, Erin M.; Piers, Warren E.

In: Organometallics, Vol. 31, No. 15, 13.08.2012, p. 5634-5637.

Research output: Contribution to journalArticle

Khalimon, Andrey Y. ; Leitao, Erin M. ; Piers, Warren E. / Photogeneration of a phosphonium alkylidene olefin metathesis catalyst. In: Organometallics. 2012 ; Vol. 31, No. 15. pp. 5634-5637.
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