| 摘要 |
PURPOSE: A method for preparing 5-hydroxymethyl furfural(5-HMF) by dehydration of fructose using a metal chloride is provided to obtain 5-hydroxymethyl furfural at a low temperature. CONSTITUTION: A method for preparing 5-hydroxymethyl furfural(5-HMF) comprises a step of dehydrating fructose using a metal chloride as an acid catalyst in an ionic liquid at 50-80 deg. C for 30 minutes to 1 hour. The ionic liquid is a imidazolium-based ionic liquid. The imidazolium-based ionic liquid is 1-butyl-3-methylimidazolium chloride(BMIM Cl) or 1-ethyl-3-methylimidazolium chloride(EMIM Cl). [Reference numerals] (AA) 5-HMF yield(%) |
