Chelidamic acid derivatives: Precursors to functionalized pyridyl cryptands & functionalized metal ligands
作者:Harry W. Gibson、Terry L. Price、Adam M.-P. Pederson、Zhenbin Niu、Pothanagandhi Nellipalli
DOI:10.1016/j.tet.2021.132333
日期:2021.8
materials, functionalization is required; in this article we describe syntheses of 23 new chelidamic acid (2,6-dicarboxy-4-hydroxypyridine, 5) derivatives that can be used to prepare functional pyridyl cryptands and functional metal ligands. The preparation and characterization of three new functionalized pyridyl cryptands are also included.
吡啶基穴状配体,如12 - 16从吡啶-2,6-二羰基氯(形成4)和冠醚二醇7 - 11,已被证明是优异的紫精主机(N,N' -二烷基-4,4' -联吡啶鎓盐,2 ) K a值为~10 4至10 6 M -1,因此被认为是超分子系统的理想构件。然而,为了将这些宿主基序整合到有用的起始材料中,需要进行功能化;在本文中,我们描述了 23 种新螯合胺酸(2,6-二羧基-4-羟基吡啶,5 ) 可用于制备功能性吡啶基穴状配体和功能性金属配体的衍生物。还包括三个新的功能化吡啶基穴状配体的制备和表征。