离子液体中葡萄糖催化转化为5-羟甲基糠醛

摘要

以绿色溶剂离子液体1-丁基-3-甲基咪唑氯盐([BMIM]Cl)作为溶剂,六水合氯化铬(CrCl3.6H2O)为催化剂,研究了最重要的生物质衍生糖类葡萄糖向平台化合物5-羟甲基糠醛(HMF)的转化.该催化反应体系十分有效,在130℃下反应20min,HMF的产率可达到70%以上.并且该催化体系可以循环使用,经过5次的重复使用后仍保持稳定的活性.%An efficient process for preparation of 5-hydroxymethylfurfural ( HMF ) from glucose was developed with ionic liquid 1-butyl-3-methyl imidazolium chloride ([BMIM][Cl])as solvent and CrCl3 as catalyst. A HMF yield of above 70％ could be obtained at 130 ℃ in 20 min. Recycle of the ionic liquid and CrCl3 demonstrated constant activity after 5 cycles of use.