Synthesis of Phenanthridinones from N-Methoxybenzamides and Arenes by Multiple Palladium-Catalyzed CH Activation Steps at Room Temperature
作者:Jaganathan Karthikeyan、Chien-Hong Cheng
DOI:10.1002/anie.201104311
日期:2011.10.10
Substituted phenanthridinones can be obtained with high regioselectivity and in very good yields by palladium‐catalyzed cyclization reactions of N‐methoxybenzamides with arenes (see scheme). The reaction proceeds through multiple oxidative CHactivation and CC/CN formation steps in one pot at room temperature, and thus provides a simple method for generating bioactive phenanthridinones.
许多步骤可以轻松完成:通过钯催化N-甲氧基苯甲酰胺与芳烃的环化反应,可以以较高的区域选择性和很高的收率获得取代的菲啶酮(参见方案)。通过多个氧化C中的反应进行 ħ活化和C C / C Ñ形成步骤中在室温下1个锅,并因此提供用于产生生物活性phenanthridinones的简单方法。
Palladium-Catalyzed Deaminative Phenanthridinone Synthesis from Aniline via C–H Bond Activation
作者:Subhash L. Yedage、Bhalchandra M. Bhanage
DOI:10.1021/acs.joc.6b00378
日期:2016.5.20
This work reports palladium-catalyzed phenanthridinone synthesis using the coupling of aniline and amide by formation of C–C and C–N bonds in a one-pot fashion via dual C–Hbondactivation. It involves simultaneous cleavage of four bonds and the formation of two new bonds. The present protocol is ligand-free, takes place under mild reaction conditions, and is environmentally benign as nitrogen gas