Practical Synthesis of Phenanthridinones by Palladium-Catalyzed One-Pot C-C and C-N Coupling Reaction: Extending the Substrate Scope to<i>o</i>-Chlorobenzamides
作者:Hailong Liu、Weibiao Han、Chun Li、Zhiyong Ma、Ruixiang Li、Xueli Zheng、Haiyan Fu、Hua Chen
DOI:10.1002/ejoc.201501170
日期:2016.1
domino reaction proceeds through a sequential C–C and C–N bond-formation process in one pot. This protocol exhibits broad substrate scope and affords a series of phenanthridinones in up to 93 % yield. Importantly, the protocol could also be applied for the less reactive o-chlorobenzamides. The approach constitutes the first example of the synthesis of phenanthridinones from this kind of substrate. Moreover
通过在 N,N-二甲基乙酰胺中使用不含膦的钯催化剂,开发了一种从邻卤苯甲酰胺中高效构建菲啶酮衍生物的方法。多米诺反应在一个锅中通过连续的 C-C 和 C-N 键形成过程进行。该协议展示了广泛的底物范围,并以高达 93% 的产率提供了一系列菲啶酮。重要的是,该协议也可应用于反应性较低的邻氯苯甲酰胺。该方法构成了从这种底物合成菲啶酮的第一个例子。此外,克级反应的成功表明,这个操作简单的过程是可扩展的。