Intramolecular addition of diarylmethanols to imines promoted by KOt-Bu/DMF: a new synthetic approach to indole derivatives
作者:Jia-hua Chen、Zi-cong Chen、Hong Zhao、Ting Zhang、Wei-juan Wang、Yong Zou、Xue-jing Zhang、Ming Yan
DOI:10.1039/c6ob00423g
日期:——
KOt-Bu/DMF promoted intramolecular addition of diarylmethanols to imines was developed. A series of 2,3-disubstituted indoles was obtained in good yields. A reaction mechanism of radical cyclization and subsequent dehydration is proposed.
开发了KO t -Bu / DMF促进的二芳基甲醇分子内加成至亚胺。以高收率获得了一系列的2,3-二取代的吲哚。提出了自由基环化和随后脱水的反应机理。
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。
Hanschke, Chemische Berichte, 1899, vol. 32, p. 2026