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合成了两种新型酸性离子液体[ABMIM]HSO4和[AOBMIM]HSO4,它们在N-甲基咪唑阳离子上分别具有烷基苯和烷氧基苯侧链结构、阴离子为HSO4-、对水和空气稳定,总产率分别为87.2%和85.6%。所合成离子液体在棕榈酸乙酯和苯甲酸乙酯的合成中表现出了良好的催化效果,且生成的酯可以通过分液操作与离子液体分离;离子液体经过除水后可以循环利用。
Two novel acidic ionic liquids [ABMIM] HSO4 and [AOBMIM] HSO4 were synthesized. They have alkyl benzene and alkoxy benzene side chain structures on N-methylimidazolium cation respectively. The anion is HSO4-, Stable, the total yield was 87.2% and 85.6% respectively. The synthesized ionic liquid showed a good catalytic effect in the synthesis of ethyl palmitate and ethyl benzoate, and the generated ester can be separated from the ionic liquid by liquid separation operation. The ionic liquid can be recycled after being dewatered.