原位合成碘催化蔗糖制备5-羟甲基糠醛  

Preparation of 5-Hydroxymethylfurfural with Sucrose Catalyzed by In-situ Iodine

作　　者：胡宁播[1] 董喜恩[1] 罗根祥[1] 刘春生[1] 韩春玉[1] 

机构地区：[1]辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

出　　处：《化学与粘合》2011年第1期70-72,78,共4页Chemistry and Adhesion

摘　　要：着重研究以原位合成碘(即三氯化铬和碘化钠发生氧化还原反应产生的碘)为催化剂,蔗糖为原料制备羟甲基糠醛。考察了反应时间、反应温度、催化剂用量(以三氯化铬和碘化钠质量计)、蔗糖质量百分数对羟甲基糠醛收率的影响。得到以原位合成碘为催化剂的优化条件:时间45min、温度130℃、催化剂用量0.25g、蔗糖质量百分数8%。在此优化条件下,用单质碘做催化剂制备羟甲基糠醛,把两者的结果相比较。以原位合成碘为催化剂,收率达到79.5%(根据果糖部分计算);以碘为催化剂,收率达到51.1%。产物经紫外可见分光光度计检测。The preparation of 5-hydroxymethylfurfural was studied which used in-situ iodine as catalyst （in-situ iodine was generated by redox reaction of chromium trichloride and sodium iodide） and sucrose as raw materials. The effects of reaction time, temperature, the catalyst amount, the sucrose mass percentage on the yield of 5-hydroxymethylfurfural were investigated. The most suitable condition for the reaction were as follows： the reaction time was 45 min, temperature was 130℃, the catalyst amount was 0.25g, the sucrose mass percentage was 8%. Under these conditions, the yield of 5-hydroxymethylfurfural was 79.5% and 51.1% respectively which used in-situ iodine and iodine as catalyst respectively. The products were examined with UV-Vis spectrophotometer.

关 键 词：原位合成碘 羟甲基糠醛 蔗糖 催化 

分 类 号：TQ426.94[化学工程]