摘要
以1-甲基吡咯烷为原料,通过季铵化、离子交换两步合成了中间体1-乙基-1-甲基吡咯烷溴盐([EMPy]Br)与1-乙基-1-甲基吡咯烷四氟硼酸盐离子液体([EMPy]BF_(4)),并通过FTIR、TG-DTG、^(1)H NMR等手段对其结构与性能进行了表征,进一步探究了反应介质、反应溶剂、反应温度、反应时间等因素对其收率的影响。结果表明,在优化的反应条件下,[EMPy]Br与[EMPy]BF_(4)收率分别达到98.3%、92.6%,且[EMPy]BF_(4)具有良好的热稳定性和溶解性。该合成路线简单、操作简便、目标产物收率高、后处理过程简单。这些特点使其在工业化生产中具有较高的可行性和经济性,符合绿色化学和高效生产的要求,具备良好的应用前景。
Using 1-methyl pyrrolidine as the raw material,1-ethyl-1-methyl pyrrolidine bromide ionic liquid intermediate([EMPy]Br)and 1-ethyl-1-methyl pyrrolidine tetrafluoroborate ionic liquid([EMPy]BF_(4))were synthesized through two-step reactions including quaternization and ion exchange.Their structure and properties were characterized by means of FTIR,TG-DTG,^(1)H NMR,and the effects of reaction medium,reaction solvent,reaction temperature,and reaction time on the yield were further investigated.The results show that under the optimized reaction conditions,the yields of[EMPy]Br and[EMPy]BF_(4) reach 98.3%and 92.6%,respectively,and[EMPy]BF_(4) has good thermal stability and solubility.The synthetic route is simple,the operation is convenient,the target products have high yields,and the post-treatment process is simple.These features make it highly feasible and economical for industrial production,conform to the requirements of green chemistry and efficient production,and have good application prospects.
作者
旷宇阳
贺晶
翟雨婷
王津津
刘宁
KUANG Yu-yang;HE Jing;ZHAI Yu-ting;WANG Jin-jin;LIU Ning(School of the Chemical and Environmental Engineering,Human Institute of Technology,Hengyang 421002,China)
出处
《化学工程师》
2025年第9期1-5,共5页
Chemical Engineer
基金
湖南省自然科学基金项目(2025JJ70140)
湖南省教育厅科学研究重点项目(22A0628)
国家级大学生创新创业训练计划项目(S202411528021)
湖南省大学生创新创业训练计划项目(S202411528073,S202411528081X)。
