纳米复合杂多酸催化合成草莓酯  

Catalytic Synthesis of Fraistone-B by Nanometer Complex Heteropoly Acid

作　　者：张彦岭[1] 张富捐[1] 

机构地区：[1]许昌学院化学化工学院,河南许昌461000

出　　处：《浙江化工》2010年第6期15-17,共3页Zhejiang Chemical Industry

基　　金：河南省教育厅自然科学基础研究项目(2007150037)

摘　　要：以纳米固载杂多酸H4SiW12O40∕SiO2为催化剂,乙酰乙酸乙酯和1,2-丙二醇为原料,合成了草莓酯,并研究了各种因素对产品收率的影响。实验表明,纳米固载杂多酸H4SiW12O40∕SiO2是合成草莓酯的良好催化剂,在酯醇物质的量比为1:1.4,催化剂用量为反应物料总质量的1%,环己烷12mL,反应时间1h的条件下,收率可达92.7%。Fraistone-B is synthesized from ethyl acetoacetate and 1,2-propanediol by using nanometer complex heteropoly acid as catalyst.The factors influencing the synthesis are discussed and best conditions are found out. nanometer complex heteropoly acid is a good catalyst for synthesizing Fraistone-B.The optimum conditions are：molar ratio of ethyl acetoacetate to 1,2-propanediol is 1：1.4,the mass fraction of catalyst in the reaction medium is 1%, cyclohexane 12 mL, the reaction time is 7 h.The yield can reach up to 92.7%.

关 键 词：草莓酯 纳米固载杂多酸 催化合成 

分 类 号：TS264.3[轻工技术与工程—发酵工程]