苹果酯的催化合成研究  

Study on catalytic synthesis of fructone

作　　者：邓斌[1,2] 章爱华[3] 徐安武[2] 

机构地区：[1]湘南学院化学与生命科学系,湖南郴州423000 [2]中国科技大学合肥微尺度物质科学国家实验室,安徽合肥230026 [3]吉首大学化学化工学院,湖南吉首416000

出　　处：《商丘师范学院学报》2009年第9期81-84,共4页Journal of Shangqiu Normal University

基　　金：湖南省自然科学基金资助项目(07JJ3017);湖南省教育厅优秀青年科研基金项目(06B089)

摘　　要：研究了以乙酰乙酸乙酯和乙二醇为原料,以纳米Y2O3为催化剂,在微波辐射作用下直接合成苹果酯的新方法.实验考察了微波辐射功率、微波辐射时间、醇酯摩尔比、催化剂用量对反应的影响.经正交实验设计得到的最佳反应条件是:微波辐射功率400 W,微波辐射时间9 min,醇酯摩尔比为1.2∶1,催化剂用量2.0 g,在此条件下,苹果酯的收率可达95%以上.结果表明,微波技术用于苹果酯的合成,方法操作简便、反应时间短、产物收率高,具有一定的实用价值.Microwave irradiation was used in the catalytic synthesis of fructone from ethyl acetoacetate and ethanenol using nanometer Y2O3 as a catalyst. The influence of microwave irradiation power, microwave irradiation time, mol ratio of ethanenol to ethyl acetoaeetate, and the dosage of the catalyst on the reaction was investigated. The optimmn reaction conditions determined through orthogonal design were as follows： microwave irradiation power was 400 W, microwave irradiation time 9 minutes, the tool ratio of ethanenol to ethyl aeetoacetate was 1.2 ： 1 and the dosage of the catalyst was 2.0 g. Under the optimum reaction conditions the yield of fructone was above 95 %. In summary, the microwave technique promotes the synthesis of fructone with high yield and convenient operation and has extensive utilization.

关 键 词：微波合成 苹果酯 纳米Y2O3 正交试验 

分 类 号：O621.3[理学—有机化学]