The intermediates N-butylpyridium chloride(BPC) and l-butyl-3-methylimidazolium chloride([bmim]Cl) for the synthesis of ionic liquids are prepared by the reactions between N-butyl halide and pyridium or N-methylimidazolium.

• 首先利用1-氯丁烷与吡啶或1-甲基咪唑反应合成了作为室温离子液体中间体的氯化N-正丁基吡啶(BPC)、氯化1-甲基-3-丁基咪唑([bmim]Cl)。