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咪唑型室温离子液体的绿色合成研究
Study on green synthesis of 1,3-dialkyl-imidazolium ionic liquids
【摘要】 设计了无溶剂一锅法合成1-丁基-3-甲基咪唑四氟硼酸盐和1-丁基-3-甲基咪唑六氟磷酸盐室温离子液体的新的合成路线,反应原料在80℃下搅拌反应3 h,分离产率分别为97.8%和92.9%。用IR1、HNMR1、3CNMR对离子液体的结构进行了表征,热重分析法测试了其热稳定性能分别为340℃和360℃,探索了反应温度和反应时间对产率的影响。
【Abstract】 Room-temperature ionic liquids 1-butyl-3-methylimidazolium hexafluorophosphate(BmimPF6),1-butyl-3-methyl-imidazolium tetrafluoroborate(BmimBF4),were prepared in a reactor free of any solvents or any other medium at 80 ℃ upon stirring for 3 h to give excellent yields of 97.8% and 92.9%,respectively.Their structures were characterized by IR,(()1HNMR) and(()13CNMR),and their thermal stability performance was determined by thermal gravimetric analyses.The influence of reaction temperature and reaction time on the product yields was also explored.
- 【文献出处】 化学试剂 ,Chemical Reagents , 编辑部邮箱 ,2007年01期
- 【分类号】O626.23
- 【被引频次】70
- 【下载频次】1721