A Mild Palladium-Catalyzed Suzuki Coupling Reaction of Quinoline Carboxylates with Boronic Acids
作者:Wenjie Li、Joe J. Gao、Yongda Zhang、Wenjun Tang、Heewon Lee、Keith R. Fandrick、Bruce Lu、Chris H. Senanayake
DOI:10.1002/adsc.201100141
日期:2011.7
A palladium‐catalyzed cross‐coupling between aryl carboxylates and boronicacids has been achieved for the first time by taking advantage of the enhanced reactivity of quinoline 4‐carboxylates. Also for the first time a Suzukicouplingreaction via a self‐activation of boronicacids without addition of base is described. The reactions proceed under mild conditions (25–65 °C) to give excellent yields
Synthesis of Quinolines through Three-Component Cascade Annulation of Aryl Diazonium Salts, Nitriles, and Alkynes
作者:Hao Wang、Qian Xu、Sheng Shen、Shouyun Yu
DOI:10.1021/acs.joc.6b02509
日期:2017.1.6
An efficient and rapid synthesis of multiply substituted quinolines is described. This method is enabled by a three-component cascade annulation of readily available aryl diazonium salts, nitriles, and alkynes. This reaction is catalyst- and additive-free. Various aryl diazonium salts, nitriles, and alkynes can participate in this transformation, and the yields are up to 83%.