作者:Francois Kerff、Cui‐Lian Liu、Xiao Mu、Ugo Gilbert、Louis Smal、Loic Meinertzhagen、Brice Kauffmann、Koen Robeyns、Michael L. Singleton
DOI:10.1002/cplu.202100170
日期:2021.8
block library available for their synthesis. In this work, we describe the synthesis of a range of three dimensional heteroaromatic monomers, based on iptycene scaffolds, that are suitable for the synthesis of aromatic oligoamide foldamers. These units can be obtained in gram quantities in up to 80 % yield through [4+2] cycloaddition between diester, diamine, and amino acid derivatives of 1,8-diazaanthracenes
折叠器的结构和应用的多样化依赖于可用于其合成的构建块库的扩展。在这项工作中,我们描述了一系列基于iptycene支架的三维杂芳族单体的合成,这些单体适合合成芳香族低聚酰胺折叠体。通过 1,8-二氮杂蒽的二酯、二胺和氨基酸衍生物与各种亲二烯体之间的 [4+2] 环加成反应,可以以克数量获得这些单元,收率高达 80%。单体和低聚物的 X 射线结构研究表明,新基序将两个杂环和连接基团彼此以约 120° 的角度定向,为此类折叠体的设计开辟了新的几何考虑因素。