The remote C–O coupling of quinoline amides at the C5 position has been established using cheap and readily available copper catalyst under mild conditions. The positionally selective esterification protocol afforded C–O coupling products in moderate to excellent yields. Most importantly, this method may provide a potential alternative to the existing ways to build functionalized 5-hydroxyquinoline
在温和的条件下,使用便宜且容易获得的
铜催化剂已经建立了在C5位上
喹啉酰胺的远程C-O偶联。位置选择性酯化方案可提供中等至极高收率的C-O偶联产物。最重要的是,该方法可以为构建官能化的
5-羟基喹啉衍
生物的现有方法提供潜在的替代方法,该方法可用作候选药物合成中的关键中间体。