Synthesis, characterization, and catalytic activity of ionic liquids based on biosources

P. Moriel, Eduardo J. Garcia-Suarez, M. Martinez, A. B. Garcia, M. A. Montes-Moran, V. Calvino-Casilda, M. A. Banares

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

New room-temperature ionic liquids were synthesized from natural and easily available feedstocks (choline hydroxide and amino acids) following an economical and green route in which the only by-product was water. They were successfully applied as catalysts for the Knoevenagel test reaction between benzaldehyde and different active methylene compounds, at room temperature and under solvent-free conditions, to produce alpha,beta-unsaturated carbonyl compounds, exhibiting good conversions and high selectivities. The catalytic role of cholinium and aminoacetate ions in the Knoevenagel condensation is discussed.
Original languageEnglish
JournalTetrahedron Letters
Volume51
Issue number37
Pages (from-to)4877-4881
ISSN0040-4039
DOIs
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • amino acid derivative
  • benzaldehyde
  • carbene
  • carbonyl derivative
  • choline derivative
  • hydroxide
  • ionic liquid
  • solvent
  • article
  • catalysis
  • catalyst
  • chemical reaction
  • Knoevenagel condensation
  • room temperature
  • synthesis
  • Biosources
  • Catalysis
  • Green process
  • Ionic liquids
  • CHEMISTRY,
  • KNOEVENAGEL CONDENSATION REACTION
  • AMINO-ACIDS
  • ALDOL REACTIONS
  • MOLTEN-SALTS
  • SOLVENTS
  • GREEN
  • EFFICIENT
  • GLUCOSE
  • CARBONS
  • DESIGN
  • Knoevenagel test reaction
  • solvent-free condition
  • alpha-beta-unsaturated carbonyl compound
  • aminoacetate ion catalyst
  • benzaldehyde 100-52-7
  • cholinium ion catalyst
  • ionic liquids synthesis
  • methylene compound
  • 10060, Biochemistry studies - General
  • Biochemistry and Molecular Biophysics

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