development of an efficient synthetic route toward rim-differentiated C5-symmetric pillar[5]arenes (P[5]s), whose two rims are decorated with different chemical functionalities, opens up successive transformations of this macrocyclic scaffold. This paper describes a gram-scale synthesis of a C5-symmetric penta-hydroxy P[5] precursor, and a range of highly efficient reactions that allow functionalizing
向边缘差异化的C 5对称柱[5]
芳烃(P [5] s)的有效合成路线的发展,其两个边缘装饰有不同的
化学功能,打开了这种大环骨架的连续转变。本文介绍了C 5对称的五羟基P [5]前体的克级合成方法,以及一系列高效的反应,这些反应允许通过例如
氟化
硫(VI)交换(SuFEx)任意官能化任一边缘反应,酯化反应或Suzuki-Miyaura偶联反应。之后,BBr 3脱甲基激活了另一个边缘,以实现类似的功能化。