Palladium-Catalyzed Carbonylative [3+2+1] Annulation of<i>N</i>-Aryl-Pyridine-2-Amines with Internal Alkynes by CH Activation: Facile Synthesis of 2-Quinolinones
作者:Jianbin Chen、Kishore Natte、Anke Spannenberg、Helfried Neumann、Matthias Beller、Xiao-Feng Wu
DOI:10.1002/chem.201404462
日期:2014.10.27
We describe here a novel procedure for the synthesis of highly substituted 2‐quinolinones. By this newly developed approach, 2‐quinolinone derivatives were prepared in moderate to good yields by carbonylative cyclization of N‐aryl‐pyridine‐2‐amines and internal alkynes by CH activation. Remarkably, [Mo(CO)6] was applied as a solid CO source and the reaction proceeded in an atom economic manner.
我们在这里描述了一种用于合成高度取代的2-喹啉酮的新颖方法。通过这种新开发的方法,通过CH活化N-芳基-吡啶-2-胺和内部炔烃的羰基化环化反应,以中等至良好的产率制备了2-喹啉酮衍生物。显着地,将[Mo(CO)6 ]用作固体CO源,并且反应以原子经济的方式进行。