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由于聚冠醚具有选择性配位阳离子的性能,同时具有毒性低、易于回收等优点,所以它们在相转移催化、金属分离浓缩等方面有重要的应用前景。我们曾报道用2,6-二(羟
Poly crown ether has the important application prospects in the phase transfer catalysis and metal separation and concentration because of its advantages of selectively coordinating cations, low toxicity and easy recovery. We have reported that using 2,6-bis (hydroxyl