Oxidation of the 2′-NHR Analogues of 2′-OR-Chalcones; Conversion of 2′-NHR-Chalcone Epoxides
作者:György Litkei、Adrienne L. T[otilde]kés
DOI:10.1080/00397919108021059
日期:1991.8
Abstract Synthesis of 2′-NHR-chalcone expoxides and their reaction with acidic reagents are discussed.
摘要 讨论了2'-NHR-查尔酮环氧化物的合成及其与酸性试剂的反应。
Intramolecular Aminolysis of 2′-Aminochalcone Epoxides Using InBr<sub>3</sub> or BiCl<sub>3</sub> as Efficient Catalysts
作者:Naseem Ahmed、Harendra Kumar、B. Venkata Babu
DOI:10.1080/00397911.2011.604571
日期:2013.1.1
and InBr3 catalyze the ring opening of 2′-aminochalcone epoxides followed by intramolecularaminolysis under mild conditions. The reactions proceed efficiently at room temperature to afford highly functionalized 2-aryl-3-hydroxy-2,3-dihydro-4-quinolones (aza-flavanones) in excellent yields (82–92%). Intermolecular aminolysis of 2′-aminochalcone epoxides with aniline derivatives failed under the same