POCl
<sub>3</sub>
‐Mediated Reaction: A New Entry to Polysubstituted 2‐Pyridones
<i>via</i>
Self‐condensation of β‐Keto Amides
作者:Baochang Gao、Yufeng Sun、Jun Wang、Chang Cao、Zhigang Yuan、Yuan Tian、Yu Shi、Wenbin Liu
DOI:10.1002/jhet.3613
日期:2019.8
polysubstituted 2‐pyridones and their analogues from β‐keto amides via self‐condensation cyclization is described. Notable advantages include mild reaction conditions, reduced synthetic steps, high yields, and a readily available starting materials. Further mechanistic studies suggest that the transformation proceeds through self‐condensation, intramolecular nucleophilic cyclization, and elimination