Convergent and Rapid Assembly of Substituted 2-Pyridones through Formation of <i>N</i>-Alkenyl Alkynylamides Followed by Gold-Catalyzed Cycloisomerization
作者:Hidetomo Imase、Keiichi Noguchi、Masao Hirano、Ken Tanaka
DOI:10.1021/ol801466f
日期:2008.8.21
A new method for the convergent and rapid assembly of substituted 2-pyridones was developed through the formation of N-alkenyl alkynylamides (amide-linked 1,5-enynes) by N-acylation of imines with alkynoyl chlorides and the subsequent cationic Au(I)/PPh3-catalyzed cycloisomerization.