Neutral ionic liquid [hmim]Br as a green reagent and solvent for the mild and efficient dehydration of benzyl alcohols into (E)-arylalkenes under microwave irradiation

Rakesh Kumar, Abhishek Sharma, Naina Sharma, Vinod Kumar, Arun K. Sinha

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

A mild and efficient, ionic-liquid-assisted, green protocol for the dehydration of benzyl alcohols into the corresponding (E)-arylalkenes under microwave irradiation has been developed. The method utilizes a neutral and recyclable ionic liquid (1-hexyl-3-methylimidazolium bromide) as a reagent and solvent to cleanly provide a wide range of olefins without the need of harsh and expensive Brønsted/Lewis acids. The method was extended to the efficient conversion of acetylated/benzoylated derivatives of benzyl alcohol into their corresponding (E)-arylalkenes.

Original languageEnglish
Pages (from-to)5577-5582
Number of pages6
JournalEuropean Journal of Organic Chemistry
Issue number33
DOIs
StatePublished - Nov 2008

Keywords

  • Alkenes
  • Benzyl alcohol
  • Dehydration
  • Ionic liquids
  • Microwave-assisted reaction

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