Concise Copper-Catalyzed Synthesis of Tricyclic Biaryl Ether-Linked Aza-Heterocyclic Ring Systems
作者:Paola Mestichelli、Matthew J. Scott、Warren R. J. D. Galloway、Jamie Selwyn、Jeremy S. Parker、David R. Spring
DOI:10.1021/ol4025259
日期:2013.11
A new method for the synthesis of tricyclic biaryl ether-linked ring systems incorporating seven-, eight-, and nine-membered ring amines is presented. In the presence of catalytic quantities of copper(I), readily accessible acyclic precursors undergo an intramolecular carbon–oxygen bond-forming reaction facilitated by a “templating” chelating nitrogen atom. The methodology displays a broad substrate
提出了一种新的合成三环联芳基醚连接的环系统的方法,该系统结合了七元,八元和九元环胺。在催化量的铜(I)的存在下,易于获得的无环前体经历“模板化”螯合氮原子的促进而形成分子内碳-氧键的反应。该方法显示了广泛的底物范围,是实用的,并且产生了难以通过其他方式获得的稀有和生物学上令人感兴趣的三环杂芳族产物。