Russian Chemical Bulletin

, Volume 53, Issue 10, pp 2187–2191 | Cite as

Metathesis of hex-1-ene in ionic liquids catalyzed by WCl6

  • A. V. Vasnev
  • A. A. Greish
  • L. M. Kustov


Metathesis of hex-1-ene in ionic liquids catalyzed by WCl6 was studied. The metathesis is preceded by isomerization of hex-1-ene to hex-2-ene, from which the main reaction product, viz., oct-4-ene, is derived. The WCl6-1-butyl-3-methylimidazolium tetrafluoroborate (BMIM·BF4) system efficiently catalyzes metathesis of linear olefin, the ionic liquid serving as the reaction medium by forming a stable homogeneous catalytic system with WCl6. The yields of the metathesis products increase with increasing reaction temperature. The addition of tin-containing promoters leads to a substantial increase in the reaction rate. In the WCl6-BMIM·BF4-SnBu4 system, the selectivity of the formation of oct-4-ene is significantly enhanced.

Key words

metathesis ionic liquids tungsten hexachloride 1-butyl-3-methylimidazolium cation hex-1-ene oct-4-ene isomerization 


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Copyright information

© Springer Science+Business Media, Inc. 2004

Authors and Affiliations

  • A. V. Vasnev
    • 1
  • A. A. Greish
    • 1
  • L. M. Kustov
    • 1
  1. 1.N. D. Zelinsky Institute of Organic ChemistryRussian Academy of SciencesMoscowRussian Federation

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