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Electrochemistry in ionic liquids. Voltammetry and electrochemical reduction of dinitro compounds

机译:离子液体中的电化学。 Dinitro化合物的伏安和电化学还原

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1-Alkyl-3-methylimidazolium tetrafluoroborates (1) have been investigated as electrochemical solvents. Cyclic voltammograms of nitrobenzene and the three isomeric dinitrobenzenes in acetonitrile and 1 demonstrate unprecedentedly strong ion-pairing effects on the corresponding dinitro dianions in 1. All four nitro compounds underwent electrochemical reductive acetylation in good yield in 1 containing acetic anhydride. These are the first reported preparative electrolyses in ionic liquids. The viscosity of liquids 1 leads to lower diffusion coefficients (by factors of 200 or more) indicating that these media are not well suited for electroanalytical methods requiring high sensitivity.
机译:已经研究了1-烷基-3-甲基咪唑鎓四氟硼酸盐(1)作为电化学溶剂。硝基苯的循环伏安图和乙腈中的三种异构二硝苯和1在1.在1.所有四个硝基化合物在含有乙酸酐的1中获得电化学还原乙酰化的所有四个硝基化合物的前所未有的离子配对效果。这些是第一个报道的离子液体中的制备型电解。液体1的粘度导致较低的扩散系数(通过200或更多的因素),表明这些介质对需要高灵敏度的电扫描方法不太适用。

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