coumarin-3-carboxylic acids is developed. This approach enables controlled protodecarboxylation/regioselective C–H arylation of coumain-3-carboxylic acids in one-pot using a monometallic catalytic system. A wide variety of electron-donating and -withdrawing substituents on both coumarins and arylboronic acid are tolerated under the reaction conditions and 4-aryl coumarins are constructed in high yields.
已开发了一种从
香豆素-3-
羧酸直接,分步经济地合成新
黄酮的方案。这种方法可以使用单
金属催化系统,在一锅中控制
香豆素-3-
羧酸的原
羧酸脱羧/区域选择性C–H芳基化。在反应条件下,
香豆素和芳基
硼酸上都具有多种供电子和吸电子取代基,并且以高收率构建了4-芳基
香豆素。