A D2 symmetric tetraamide macrocycle based on 1,1′,4,4′-tetrahydro[3,3′(2H,2′H)-spirobiquinoline]-2,2′-dione: synthesis and selectivity for lithium over sodium and alkaline earth ions
作者:Heung-Jin Choi、Yeon Sil Park、Moon Goo Kim、Yang Jin Park、Nam Sik Yoon、Thomas W. Bell
DOI:10.1016/j.tet.2006.06.109
日期:2006.9
Macrocyclic ionophores d,l-3 and d,l-4 with four amide carbonyl ligands were synthesized and investigated in lithium ion-selective electrodes. In solvent PVC membranes, ion selectivity of d,l-3 and d,l-4 for lithium relative to sodium was observed as logKLi,Napot=−1.4 and −1.23, respectively. Spiromacrocycle d,l-3 and analogue dibenzospiromacrocycle d,l-4 have similar ion selectivity patterns for alkali
合成了具有四个酰胺羰基配体的大环离子载体d,l - 3和d,l - 4,并在锂离子选择电极中进行了研究。在溶剂PVC膜,离子选择性d,升- 3和d,升- 4,用于相对于钠锂,观察到作为logKLi,Napot = -1.4和-1.23,分别。螺旋大环d,l - 3和类似物二苯并螺旋大环d,l - 4对碱金属离子具有类似的离子选择性模式,但d,l - 4可以比d,l - 3更好地区分碱土金属离子。这是内亲亲性/亲脂性大环离子载体的一个例子,其厚的亲脂性壳层提高了其对一价阳离子相对于二价阳离子的选择性。