金属氯化物催化葡萄糖制备5-羟甲基糠醛

摘要

Using metal halides as catalyst and alkali metal halides as co-catalyst catalyzed glucose to dehydrate to make 5-hydroxymethylfurfural(5-HMF).Under the condition that the mass ratio of the material and catalyst is 10∶1 and the mass ratio of the material and co-catalyst is 1∶1,the following observations and studies were made on the influence of the metal halides、co-catalyst、solvent、temperature and time on the yield of 5-HMF.The results showed that,when NaI was used as co-catalyst for the AlCl3-catalyzed conversion of glucose at 130℃for 15 min in N,N-Dimethylacetamide (DMAC) the yield of 5-HMF is up to 30.6%.%用金属氯化物做催化剂，碱金属卤化物做助剂，催化葡萄糖脱水制备5-羟甲基糠醛（5-HMF）.在原料与催化剂的质量比为10∶1，原料与助催化剂的质量比为1∶1的情况下，考察金属氯化物、助剂、溶剂、温度、时间对5-HMF收率的影响.结果显示：AlCl3做催化剂、NaI做助剂、溶剂为N，N-二甲基乙酰胺（DMAC）、反应温度为130℃、反应时间为15 min时5-HMF收率可达30.6%.