Synthesis of Butadiynyl-Strapped Corona[6]arenes and Their Selective Anion Binding Properties
作者:Meng-Di Gu、Yao Lu、Mei-Xiang Wang
DOI:10.1021/acs.joc.9b03017
日期:2020.2.21
A number of butadiynylene-strapped O6-corona[6]arenes were synthesized straightforwardly through intramolecular oxidative homocoupling of O6-corona[6]arenes, which contained at least two N-propargyl-phthalimide segments. The mono-macrocyclic reactants were prepared from the reaction between 3,6-dichlorotetrazine and N-propargyl-3,6-dihydroxyphthalimide and another 1,4-dihydroxybenzene derivative with
通过O6-电晕[6]芳烃的分子内氧化均偶联,直接合成了许多丁二炔链束缚的O6-电晕[6]芳烃,其至少包含两个N-炔丙基-邻苯二甲酰亚胺链段。单大环反应物是由3,6-二氯四嗪和N-炔丙基-3,6-二羟基邻苯二甲酰亚胺与另一种1,3:2:1.3-1.5比率的1,4-二羟基苯衍生物一锅反应制得的反应方式。合成的丁二炔撑开的电晕[3]芳烃[3]四嗪用作高选择性电子缺陷大环主体,与溶液中的硫氰酸盐形成1:1络合物,缔合常数(Ka)高达1390 M-1。阴离子-π非共价相互作用提供了宿主-客体络合的驱动力。