3,5,5-三甲基己基碳酸酯的绿色合成研究  

Study on green synthesis of di-3,5,5-trimethylhexyl carbonate

作　　者：董燕敏[1] 程琦[1] 赵万胜[1] 陈兴权[1,2] 赵天生[2] 

机构地区：[1]常州大学江苏石油化工重点实验室,江苏常州213164 [2]宁夏大学能源化工重点实验室,宁夏银川750021

出　　处：《天然气化工—C1化学与化工》2010年第4期38-41,共4页Natural Gas Chemical Industry

基　　金：江苏省教育厅高校自然科学基础研究项目(06KJB150023)

摘　　要：以碳酸二甲酯(DMC)为羰基化试剂与3,5,5-三甲基己醇(TMH)酯交换合成了3,5,5-三甲基己基碳酸酯(TMHC),考察了催化剂种类、物料配比、反应温度以及时间等因素对反应的影响。结果表明,甲醇钠(CH3ONa)具有较好的催化活性和选择性,最佳工艺条件为:常压,反应温度为140℃,反应时间为5 h,n(DMC):n(TMH)=1∶1。在催化剂用量为原料总质量1%的条件下,目标产物收率为58.3%,选择性为73.3%。A transesterifieation process for synthesis of di-3,5,5-trimethylhexyl carbonate from dimethyl carbonate and 3,5,5- trimethylhexyl（TMH） was studied. The influences of kinds of catalysts, ratio of reactants, reaction temperature and reaction time were investigated. The results showed that sodium methoxides （CH3ONa） exhibited high activity and selectivity for the reaction, and opti- mum conditions were obtained as follows： ambient pressure, DMC/TMH mole ratio of 1：1, reaction temperature of 140℃ , and reac- tion time of 5 h. Under the optimum conditions, TMHC yield and selectivity were 58.3% and 73.3 %, respectively.

关 键 词：碳酸二甲酯 3  5  5-三甲基己醇 酯交换法 3  5  5-三甲基己基碳酸酯 

分 类 号：O643[理学—物理化学]