日用化学工业2016，Vol.46Issue(7)：400-403,4.DOI:10.13218/j.cnki.csdc.2016.07.008
超声波辐射 KF/K2CO3／γ－ Al2O3催化合成肉桂酸的工艺研究
Study on the synthesis of cinnamic acid catalyzed by KF/K2CO3/γ - Al2O3 under ultrasonic irradiation
摘要
Abstract
Cinnamic acid was prepared by Knoevenagel method with KF/ K 2 CO3 / γ - Al2 O3 as catalyst and benzaldehyde and propanedioic acid as starting materials under assistance of ultrasonic irradiation. IR,1 H NMR and elemental analysis were used to characterize the product. The effects of catalyst dosage,molar ratio of benzaldehyde and propanedioic acid,ultrasonic irradiation power and irradiation time on the yield of cinnamic acid were studied. The results showed that KF/ K2 CO3 / γ - Al2 O3 catalyst displays good catalytic activity under ultrasonic irradiation. The optimal reaction conditions are as follows:for benzaldehyde 20. 4 mL (21. 2 g, 0. 2 mol),n(benzaldehyde)∶ n(propanedioic acid)= 1∶ 1. 10,KF/ K 2 CO3 / γ - Al2 O3 dosage 4. 5 g,ultrasonic irradiation power 120 W,ultrasonic irradiation time 60 min;and the yield of cinnamic acid reaches higher than 95% .关键词
肉桂酸/超声波辐射/催化合成Key words
cinnamic acid/ultrasonic irradiation/catalytic synthesis分类
化学化工引用本文复制引用
岳金方,罗志臣,丁乙,王学兰..超声波辐射 KF/K2CO3／γ－ Al2O3催化合成肉桂酸的工艺研究[J].日用化学工业,2016,46(7):400-403,4.基金项目
江苏省第四期“333高层次人才培养工程”第三层次培养对象（苏人才办2011第8号）资助课题；扬州工业职业技术学院重点科研课题资助项目（2014A001）；江苏高校品牌专业建设工程资助项目 （）
