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OALib Journal期刊
ISSN: 2333-9721
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疏水性咪唑类离子液体的水浴微波合成
DOI: 10.3969/j.issn.1671-7627.2007.03.010, PP. 47-50
Keywords: 疏水性,离子液体,微波合成,优化
Abstract:
以溴代烷烃、n甲基咪唑和六氟磷酸铵为原料,采用水浴微波法合成了3种疏水性咪唑类离子液体:[bmim]pf6、[hmim]pf6和[omim]pf6.结果表明,与传统方法相比,水浴微波法产率较高,且反应时间由传统的36h缩短至50min.通过正交试验对离子液体[bmim]pf6的水浴微波合成反应条件进行了优化,得到了适宜的合成条件:反应时间50min,n(1溴正丁烷)∶n(n甲基咪唑)∶n(六氟磷酸铵)为1.1∶1.0∶1.0,微波功率385w,产率可达到94.54%.结合反应机理对优化结果进行了分析,并通过红外光谱验证了3种疏水性离子液体的结构.
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