Preparation and activity of recyclable polymer-supported ruthenium olefin metathesis catalysts

L Jafarpour, M P Heck, C Baylon, H M Lee, C Mioskowski, Steven Patrick Nolan

Research output: Contribution to journalArticlepeer-review

102 Citations (Scopus)

Abstract

The ruthenium catalysts (PCy3)(2)Ru(=C(H)Ph)Cl-2 (1), (PCy3)Ru(IMes)(=C(H)Ph)Cl-2 (2), (PCy3)Ru(SIMes)(=C(H)Ph)Cl-2 (3), (PCyp(3))Ru(IMes)(=CHCH=C(CH3)(2))Cl-2 (4), and (PCy3)Ru(IPr)(3-phenylindenylid-1-ene)Cl-2 (5), where IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene, SIMes = 1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene, IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, Cy = cyclohexyl, and Cpy = cyclopentyl, have been grafted to polymer supports and found to be effective heterogeneous catalysts for ring-closing metathesis. In some cases, they are recyclable, show comparable reactivity to their homogeneous counterparts, tolerate functional groups, and perform very well with unsubstituted dienes.

Original languageEnglish
Pages (from-to)671-679
Number of pages9
JournalOrganometallics
Volume21
Issue number4
DOIs
Publication statusPublished - 18 Feb 2002

Keywords

  • RING-CLOSING METATHESIS
  • CYCLIC ENOL ETHERS
  • ORGANIC-SYNTHESIS
  • ASYMMETRIC HYDROFORMYLATION
  • FUNCTIONALIZED OLEFINS
  • NITROGEN-HETEROCYCLES
  • ALKYLIDENE COMPLEXES
  • CARBENE COMPLEXES
  • ACYCLIC OLEFINS
  • NEW-GENERATION

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