Dehydration of fructose to 5-hydroxymethylfurfural (HMF) in an aqueous acetonitrile biphasic system in the presence of acidic ionic liquids

Takashi Okano, Kun Qiao, Quanxi Bao, Daisuke Tomida, Hisahiro Hagiwara, Chiaki Yokoyama

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)

Abstract

In this study, we report that phase separation of water/acetonitrile solution to a biphasic system can be induced by the presence of an acidic ionic liquid, i.e., 1-methyl-3-(butyl-4-chlorosulfonyl) imidazolium chlorosulfate ([MBCIm]SO3Cl), which allows to produce pseudo ternary phase of the/water/actonitrile/[MBCIm]SO3Cl system at room temperature. Based on this finding, an efficient and recyclable aqueous acetonitrile biphasic system is established for catalytic dehydration of fructose to 5-hydroxymethylfurfural (HMF) in the presence of [MBCIm]SO3Cl at low temperature in a shorter period of time. The ionic liquids remaining in the organic phase can be efficiently removed by simple treatment with alumina. This leaves only HMF, with a yield of up to 88.7%, in the acetonitrile phase, which could be easily removable.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalApplied Catalysis A: General
Volume451
DOIs
Publication statusPublished - 2013 Jan 31

Keywords

  • Acidic ionic liquids
  • Aqueous-organic biphasic system
  • HMF
  • Phase separation

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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