Dramatic enhancement of catalytic activity in an ionic liquid: Highly practical Friedel-Crafts alkenylation of arenes with alkynes catalyzed by metal triflates

Choong Eui Song, Da Un Jung, Su Yhen Choung, Eun Joo Roh, Sang Gi Lee

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181 Scopus citations

Abstract

A simple and highly efficient method for the Friedel-Crafts alkenylation of aromatic compounds has been developed by using a metal triflate (OTf) catalyst in an ionic liquid (see scheme, bmim = 1-butyl-3-methylimidazolium). Not only is the catalytic activity significantly enhanced in the ionic liquid and by-product formation decreased, but some reactions that were not possible in conventional organic solvents were shown to proceed smoothly.

Original languageEnglish
Pages (from-to)6183-6185
Number of pages3
JournalAngewandte Chemie - International Edition
Volume43
Issue number45
DOIs
StatePublished - 19 Nov 2004

Keywords

  • Alkenylation
  • C-C bond formation
  • Homogeneous catalysis
  • Ionic liquids
  • Lewis acids

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