Ionic liquid intermediate N-butyl pyridium bromide was synthesized from N-butyl bromide and pyridine, and the reaction process was improved and modified. Under optimized condition of reflux 2 h at room temperature, the yield was 94.8%. Their structures were characterized and analyzed by ultraviolet spectra and infrared spectra. The results show that the wavelength from big to small is as follows: acetonitrile, alcohol, water. The ultraviolet spectra show that the displacement of ultraviolet spectrogram can ...
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