无溶剂法合成季戊四醇四异辛酸酯的研究  

Study on the Synthesis of 2-Ethyl-1,1-[2,2-bis[[(2-ethyl-1-oxohexyl)oxy]methyl]-1,3-propanediyl] ester under Solvent-free Condition

作　　者：苏娜[1] 李坤兰[1] 宫国梁[2] 计海峰[1] 马英冲[1] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034 [2]大连理工大学精细化工国家重点实验室,辽宁大连116012

出　　处：《化学世界》2009年第6期370-372,384,共4页Chemical World

基　　金：辽宁省教育厅科学技术研究项目(202073424)

摘　　要：在无溶剂的条件下,以季戊四醇与异辛酸为原料合成了季戊四醇四异辛酸酯。研究了催化剂种类、用量、原料配比、反应时间及温度等因素对酯化反应的影响。结果表明,最佳反应条件是对甲苯磺酸为催化剂,催化剂用量为反应物总质量的2%,季戊四醇、异辛酸的摩尔比为1∶5,反应温度为160℃,反应时间为5 h,酯化率可达97%以上。反应产品经红外光谱确定结构。Abstract： 2-Ethyl-I, 1-[- 2, 2-bis [-I-（2-ethyl-l-oxohexyl） oxy~ methyl-I-l, 3-propanediyl~ ester was synthesized through the esterification of pentaerythritol and isocaprylic acid under solvent-free condition. Effects of amount and species of catalyst, charge ratio of the raw materials, reaction temperature and reaction time were investigated. The optimal esterification conditions were as follows： para-toluenesulfonic acid was the best catalyst with usage amount of 2~ based on the total weight of the raw materials, n （pentaerythritol） ： n（isocaprylic acid）=1 ： 5, and the reaction was carried out at 160 ~C for 5 h while the esterification rate of 97% was obtained. The structure of the product was determined by FT IR spectroscopy.

关 键 词：润滑油 酯化 对甲苯磺酸 季戊四醇四异辛酸酯 

分 类 号：O623.6[理学—有机化学]