Intramolecular cyclization of diarylmethanols and α,β-unsaturated amides promoted by KOt-Bu/DMF: a metal-free approach towards 3,4-disubstituted quinolinones
作者:Jia-hua Chen、Zi-cong Chen、Hong Zhao、Yong Zou、Xue-jing Zhang、Ming Yan
DOI:10.1039/c6ob02119k
日期:——
A facile synthesis of quinolinones through intramolecular addition of diarylmethanols to α,β-unsaturated amides promoted by KOt-Bu/DMF is reported. A series of 3,4-disubstituted quinolinones were obtained in moderate to good yields. A reactionpathway via the ketyl radical is proposed.
据报道,通过将二芳基甲醇分子内加到由KO t -Bu / DMF促进的α,β-不饱和酰胺上,可以容易地合成喹啉酮。以中等至良好的产率获得了一系列的3,4-二取代的喹啉酮。提出了通过酮基的反应途径。