作者:Carmen Froschauer、Herbert Sixta、Hedda K. Weber、Gerhard Laus、Volker Kahlenberg、Herwig Schottenberger
DOI:10.1246/cl.2012.945
日期:2012.9.5
In the search for new ionic liquids (ILs) for biomass processing, analytical chemistry, or modern nonvolatile fire retarding agents, alkyl phosphonate-based ILs represent very promising candidates. A very practical synthesis of such ILs, which is superior to the conventional quaternization of 1-alkylimidazoles by dimethyl phosphite (DMP), was developed. 1,3-Dialkylimidazolium halide salts serve as convenient starting materials, and various 1,3-dialkylimidazolium methyl phosphonates are thus accessible by simple, fast, and solvent-free procedures with DMP, where the anion is methylated.
在为生物质处理、分析化学或现代非挥发性阻燃剂寻找新型离子液体(ILs)的过程中,膦酸烷基离子液体是非常有前途的候选物质。与传统的亚磷酸二甲酯(DMP)对 1-烷基咪唑进行季铵化相比,我们开发出了一种非常实用的合成此类离子液体的方法。1,3-二烷基咪唑鎓卤化物盐可作为方便的起始原料,通过简单、快速和无溶剂的 DMP 程序,阴离子被甲基化后,就可以得到各种 1,3-二烷基咪唑鎓甲基膦酸盐。