硼辅助冠醚的合成与应用

来源 :中国化学会全国第十二届有机合成化学学术研讨会 | 被引量 : 0次 | 上传用户:andacaizheng
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  冠醚与碱金属、碱土金属有良好的配位作用,在过去的数十年中基于大环冠醚络合分离碱金属、碱土金属离子(特别是锂离子)的技术被广泛研究。如冠醚液液萃取法、基于冠醚主体的离子交换树脂法等。然而,传统的冠醚尽管对金属离子的络合能力较强,但存在反萃率低、电荷不呈中性等缺陷。因此,对于相应的分离技术仍然存在挑战。在此,我们引入了硼原子辅助冠醚关环,由于硼氧关环可被亲硼性氟离子开环而发挥选择性的离子络合开关作用,且络合后呈电中性。因此,我们合成了一系列的硼辅助冠醚化合物,有望在碱金属、碱土金属离子的分离上得到应用。
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