一种环烷基咪唑啉季铵盐的合成  

Synthesis of A Kind of Naphthene-Base Imidazoline Quaternary Ammonium Salt

作　　者：陈武[1] 温冲[1] 梅平[1] 潘阳秋[2] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]中国石油化工股份有限公司西北分公司,新疆乌鲁木齐830011

出　　处：《化学与生物工程》2010年第4期30-32,44,共4页Chemistry & Bioengineering

基　　金：中国石油科技创新基金资助项目(2008D-5006-02-01)

摘　　要：以环烷酸、二乙烯三胺为原料,采用阶梯升温自由出水法合成了环烷基咪唑啉及其季铵盐,确定环烷基咪唑啉的最佳合成条件为:硼酸为催化剂,环烷酸与二乙烯三胺的摩尔比1.0∶1.5、酰胺化温度160℃、酰胺化时间8 h、环化温度220℃、环化时间6 h;确定环烷基咪唑啉季铵盐的最佳合成条件为:无水乙醇为溶剂,环烷基咪唑啉与氯化苄的摩尔比1.0∶2.0、反应温度50℃、反应时间10 h。经熔点和红外光谱分析表明,合成产物为目标产物环烷基咪唑啉季铵盐。Taking naphthenic acids and diethylene triamine as raw materials, naphthene-base imidazoline and naphthene-base imidazoline quaternary ammonium salt are synthesized using method of step-by-step rising temperature and free dewatering. The optimal synthetic conditions for naphthene-base imidazoline are obtained as follows., the catalyst is boric acid, the molar ratio of naphthenic acid to diethylene triamine is 1.0 ： 1.5, the amidation temperature is 160℃, the amidation time is 8 h, the cyclization temperature is 220℃, the eyelization time is 6 h. The optimal synthetic conditions for naphthene-base imidazoline quaternary ammonium salt are obtained as follows： solvent is anhydrous ethanol, the molar ratio of naphthene-base imidazoline to benzyl chlorine is 1.0 ： 2.0, the reaction temperature is 50℃, the reaction time is 10 h. The melting point and IR spectra analysis show that the synthesized product is the target product naphthene-base imidazoline quaternary ammonium salt.

关 键 词：环烷基咪唑啉 环烷基咪唑啉季铵盐 合成 

分 类 号：TQ252.3[化学工程—有机化工] TE985.6[石油与天然气工程—石油机械设备]