铌酸催化合成草莓酯的研究  

Study on Synthesis of Fraistone Catalyzed by Noibic Acid

作　　者：彭安顺[1] 孙玉珂[1] 

机构地区：[1]临沂师范学院,山东临沂276005

出　　处：《沈阳化工学院学报》2001年第3期190-192,共3页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：以铌酸为催化剂 ,由乙酰乙酸乙酯和 1 ,2丙二醇合成草莓酯 .考察影响收率的因素 ,其最佳条件为 :乙酰乙酸乙酯与 1 ,2 丙二醇的比为 1∶1 5 (mol/mol) ,催化剂用量为反应物质量的 1 5 % ,带水剂用量为反应物体积的 42 2 % ,反应在回流温度下进行 ,反应时间 2 5h .收率达 83 4% .Fraistone was synthesized from ethyl acetoacetate and 1,2 propanediol using noibic acid as catalyst Various factors that effect the condensation yield were investigated The optimum reaction conditions are as follows:ethyl acetoacetate:1,2 propanediol is 1 0 mol∶1 5 mol;the mass fraction of catalyst is 1 5%;the volume fraction of agent to remove water is 42 2% of the volume of reaction mixtare;reaction temperature is reflux temperature,reaction time is 2 5 h The yield is above 83 4 %.

关 键 词：铌酸 催化剂 催化合成 草莓酯 合成香料 

分 类 号：TQ655[化学工程—精细化工]