论文部分内容阅读
大环多元醚—酯是近年来发展相当快的一种内酯型大环醚(Macrocyclic Ether—Lactone)化合物。其种类已达数百种。这不仅是因为它们象常用冠醚一样被广泛地应用于科学研究,而且还具有(某些类别)容易制备,价格低廉的优点。由于共分子内同时具有醚氧和与缬氨霉素(一种天然大环抗生素)相似的酯基,因而作为一类多配位基,可以与碱金属、碱土金属及过渡金属离子络合。此类化合物在液膜技
Macrocyclic polyether-esters are macrocyclic Ether-Lactone compounds that have developed quite rapidly in recent years. Its type has reached hundreds. This is not only because they are used extensively for scientific research, as are common crown ethers, but also have the advantages of being easy to prepare and inexpensive (of certain categories). Due to the presence of both ether oxygen and an ester group similar to valinomycin, a natural macrocyclic antibiotic, in the molecule, it is a type of multi-ligand capable of complexing with alkali metals, alkaline earth metals and transition metal ions. Such compounds in liquid film technology