One‐potsynthesis of 2,3‐disubstituted 4‐aminoquinolines is developed through a three‐component reaction of 2‐azidobenzaldehydes, α‐fluoro‐β‐ketoesters and amines involving cascade Mannich, aza‐Wittig and dehydrofluorinative aromatization. The method is applicable to other functionalized quinolines. It is a pot, atom and step economy (PASE) synthesis of biologically interesting 4‐aminoquinolines relevant
An unexpected one-pot synthesis of multi-substituted quinolines via a cascade reaction of Michael/Staudinger/aza-Wittig/aromatization of ortho-azido-β-nitro-styrenes with various carbonyl compounds
作者:Zhi-Hua Yu、Hu-Fei Zheng、Wei Yuan、Zi-Long Tang、Ai-Dong Zhang、De-Qing Shi
DOI:10.1016/j.tet.2013.07.050
日期:2013.9
Multi-substituted quinolines 3 were unexpectedly prepared from a cascadereaction of ortho-azido-β-nitro-styrenes with various carbonyl compounds. This method takes advantages of mild condition, simple work-up, high yield as well as wide substrate scope, which makes this method powerful for one-potsynthesis of multi-substituted quinolines.