Nonaggregational Shape-Persistent Cyclo[6]aramide and Its Macrocyclic Effect toward Binding Secondary Ammonium Salts in Moderately Polar Media
作者:Jinchuan Hu、Long Chen、Yi Ren、Pengchi Deng、Xiaowei Li、Youjia Wang、Yiming Jia、Jian Luo、Xinshi Yang、Wen Feng、Lihua Yuan
DOI:10.1021/ol401930u
日期:2013.9.20
Simply by introducing steric side chains, the shape-persistent cyclo[6]aramides were found to exhibit nonaggregational behavior and strong association (3 x 10(4) M-1) ability in acetone for binding secondary ammonium salt. The complexation can be switched in an on-and-off fashion using AgPF6 and TBACl, contrasting sharply with their corresponding acyclic pentamer and demonstrating the macrocyclic effect.