作者:Grégory Pieters、Vincent Terrasson、Anne Gaucher、Damien Prim、Jerôme Marrot
DOI:10.1002/ejoc.201000685
日期:2010.10
The synthesis of substituted 1,8-diarylnaphthalenes is reported. A bis-Suzuki coupling strategy starting from 1,8-di-bromonaphthalene provides a useful and general route to the 1,8-diarylnaphthalene scaffold. In this context, N-heterocyclic benzhydrylamine ligands, in combination with PdCl 2 , were found to form especially efficient catalytic systems. The syn/anti ratios were determined in solution
报道了取代的 1,8-二芳基萘的合成。从 1,8-二溴萘开始的双 Suzuki 偶联策略为 1,8-二芳基萘支架提供了有用的通用途径。在这种情况下,发现 N-杂环二苯甲基胺配体与 PdCl 2 结合形成特别有效的催化体系。从它们的 1 H NMR光谱在溶液中确定顺/反比。六种新靶材的固态分子结构分析重点关注萘核的变形。观察到的平面性缺乏是由几个参数引起的,例如取代基的性质和数量、取代模式以及共面环之间的空间拥挤和 π 堆积。