A series of new chiral ionic liquid catalysts composed of the N,N'-bis(salicyclidene) cyclohexene diaminatocobalt and an imidazolium salt were designed, prepared and applied for the chiral cyclic carbonate synthesis from racemic epoxides and carbon dioxide. All reactions exhibit good enantioselectivity for the chiral cyclic carbonate without polycarbonate and other by-products. The order of The order of catalytic activity toward the axial anions is OAc⁻ > CF₃CO₂⁻ > CCl₃CO₂⁻ > OTs⁻ and the order of enantioselectivity is OTs⁻ > OAc⁻ > CCl₃CO₂⁻ > CF₃CO₂⁻.

中文翻译：

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通过手性双功能离子液体催化CO ₂催化不对称环加成成环氧化物

设计，制备了一系列由N，N'-双（水杨环烯）环己烯二氨基钴和咪唑鎓盐组成的新型手性离子液体催化剂，并将其用于外消旋环氧化物和二氧化碳的手性环状碳酸酯的合成。对于没有聚碳酸酯和其他副产物的手性环状碳酸酯，所有反应都表现出良好的对映选择性。催化活性的朝向轴向的阴离子的顺序的顺序是OAC ^-  > CF ₃ CO ₂ ^-  >的CCl ₃ CO ₂ ^-  >在职培训计划^-和对映选择性的顺序是在职培训计划^-  > OAC ^-  >的CCl ₃CO ₂ ^-  > CF ₃ CO ₂ ^-。