机构地区: 湖南师范大学化学化工学院
出 处: 《海南师范学院学报(自然科学版)》 2004年第1期44-46,共3页
摘 要: 在一水硫酸氢钠存在下,由马来酸酐和乙醇合成了马来酸二乙酯.当马来酸酐、乙醇和硫酸氢钠的物质的量之比为1∶4∶0.36,环己烷为带水剂,回流分水40min,酯收率达74.4%.并研究了催化剂的重复使用性能. Diethyl maleate was a synthesis from maleic anhydride and ethyl alcohol in the presence of sodium bisulfate monohydrate. The yield of the ester could reach 74.4% when the amount of substance ratio of maleic anhydride,ethyl alcohol and sodium bisulfate is 1∶4∶0.36, with cyclohexane being the water carrier, refluxed and water segregating for 40 mins.The reusability of the catalyst was studied in this paper.