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 boronic acids has been achieved for the first time by taking advantage of the enhanced reactivity of quinoline 4‐carboxylates. Also for the first time a Suzuki coupling reaction via a self‐activation of boronic acids without addition of base is described. The reactions proceed under mild conditions (25–65 °C) to give excellent yields
通过利用喹啉4-羧酸盐增强的反应性,首次实现了芳基羧酸盐与硼酸之间的钯催化交叉偶联。还是首次描述了通过硼酸的自活化而不添加碱的Suzuki偶联反应。反应在温和的条件下(25–65°C)进行,可得到优异的收率,并且可以耐受多种功能。