Synthesis of Substituted <i>N</i>-Benzyl Pyridones via an <i>O</i>- to <i>N</i>-Alkyl Migration
作者:Erica L. Lanni、Michael A. Bosscher、Bartel D. Ooms、Christina A. Shandro、Bruce A. Ellsworth、Carolyn E. Anderson
DOI:10.1021/jo800866w
日期:2008.8.1
A new LiI-promoted O- to N-alkyl migration has been developed for the conversion of O-alkylated 2-hydroxy pyridines, quinolines, and pyrimidines to the corresponding N-alkylated heterocycles in good to excellent yields (57−99%). This method serves as an efficient means for the preparation of N-benzyl pyridones, quinolones, and pyrimidones.
Direct Synthesis of N‐Alkyl‐2‐Pyridones Using 2‐Halogenated Pyridines
作者:Xia Chen、Jianyi Shi、Yuqun Lin、Yibiao Li、Shaohua Jiang、Tianxiang Chen、Zhongzhi Zhu、Aijun Ma
DOI:10.1002/ejoc.202301184
日期:2024.2.12
This study presents a method for synthesizing pyridine, quinoline, and isoquinoline ketones from 2-halogenated N-heterocycles under mild conditions. The use of H2O as both solvent and oxygen source makes the reaction environmentally friendly, with broad substrate applicability and high functional group tolerance.