硫酸高铈催化合成丁酮1,2-丙二醇缩酮  

Synthesis of butanone 1,2-propanediol ketal catalyzed by ceric sulfate

作　　者：董镜华[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《工业催化》2011年第5期56-58,共3页Industrial Catalysis

摘　　要：以硫酸高铈为催化剂,丁酮和1,2-丙二醇反应合成丁酮1,2-丙二醇缩酮。探讨了硫酸高铈对缩酮反应的催化活性,研究了酮醇物质的量比、催化剂用量和反应时间等因素对产品收率的影响。结果表明,硫酸高铈是合成丁酮1,2-丙二醇缩酮的良好催化剂,在丁酮与1,2-丙二醇物质的量比1:1.6、催化剂用量0.4 g、反应温度(80～108)℃、环己烷为带水剂和反应60 min的条件下,丁酮1,2-丙二醇缩酮收率可达81.5%。Butanone 1,2-propanediol ketal was synthesized from butanone and 1,2-propanediol using ceric sulfate as the catalyst.The catalytic activity of ceric sulfate for ketal reaction,and the influence of molar ratio of butanone to 1,2-propanediol,catalyst dosage and reaction time on the product yield were investigated.The results showed that ceric sulfate was good catalyst for the synthesis of butanone 1,2-propanediol ketal and the product yield of 81.5% was obtained under the optimum condition as follows：molar ratio of butanone to 1,2-propanediol 1∶1.6,catalyst dosage 0.4 g,reaction temperature （80-108） ℃,cyclohexane as the watercarrying agent and reaction time 60 min.

关 键 词：催化化学 丁酮-1 2-丙二醇缩酮 硫酸高铈 缩酮反应 

分 类 号：O643.36[理学—物理化学] O623.56[理学—化学]