含硅二烃基锡化合物对醇醛(酮)缩合反应的催化活性  

Catalytic Activities of Dialkyltin Compounds Containing Silicon to the Condensation Reaction of Acetal(Ketal)-Alcohol

作　　者：林森[1] 郭杨洋[1] 邓瑞红[1] 黄志强[1] 

机构地区：[1]南昌大学化学系,南昌330031

出　　处：《应用化学》2013年第3期271-275,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(20762006);江西省自然科学基金(2007JZH2103)资助项目

摘　　要：考察了10种含硅二烃基锡化合物对柠檬醛与乙二醇及环己酮与乙二醇的缩合反应的催化活性。研究了催化剂用量、反应时间、醛醇及酮醇的物质的量之比和溶剂等对反应产率的影响。结果表明,除一种催化剂外,9种化合物对缩醛和缩酮反应均有良好的催化活性,当催化剂用量为反应物质量分数的1.4%,醛与乙二醇的物质量之比为1∶1.3,酮与乙二醇的物质量之比为1∶1.6,以环己烷为带水剂,回流反应3 h,产物收率分别达92%和86%以上。The catalytic activities of ten dialkyltin compounds containing silicon were investigated through the condensation reaction of acetal（ketal） -alcohol. Factors such as amount of catalyst, reaction time, molar ratio of aldehyde （ketone） to alcohol and solvent kind were studied toward the yield of reaction. The results show that, except one catalyst, nine compounds are good in catalytic activities for the acetalization and ketalization. The yield reached 92% and 86% under optimal compounds ： catalyst dosage was 1.4% based on the mass of the reactants, the molar ratio of the aldehyde to goycol was 1 ： 1.3, ketone to goycol was 1 ： 1.9, cyclohexane was used as the water carrying agent, and the reaction was refluxed for 3 h.

关 键 词：含硅二烃基锡化合物 催化活性 缩醛反应 缩酮反应 

分 类 号：O627.4[理学—有机化学]