Noels' vs. grubbs' catalysts: Evidence for one unique active species for two different systems!

Mathieu Ahr, Chloé Thieuleux*, Christophe Copéret, Bernard Fenet, Jean Marie Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The catalytically active propagating species involved in the self-metathesis of ethyl oleate obtained from the multi-component Noels' catalytic system {[RuCl2(p-cymene)(PCy3)] + Me 3SiCHN2} are probably the same as those of the single-component well-defined Grubbs' 1st generation catalyst, [Cl 2Ru=CHPh(PCy3)2] (1-Ph). In the case of the Noels' catalyst, it involves the de-coordination of p-cymene, and the redistribution of PCy3 ligands to generate only 5-10% of [Cl 2Ru=CHR(PCy3)2], where R = CH-(CH 2)6-CH3 (1-Oct) and R = CH-(CH 2)6-COOEt (1-E), while 1-Ph can generate 100% of these species.

Original languageEnglish (US)
Pages (from-to)1587-1591
Number of pages5
JournalAdvanced Synthesis and Catalysis
Issue number10
StatePublished - Jul 2007


  • Active species
  • Ethyl oleate
  • Grubbs' catalyst
  • Noels' catalyst
  • Olefin metathesis

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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