An efficient and practical two-step process has been developed for the synthesis of 2-amino-4(3H)-quinazolinones via ring-opening of isatoic anhydride and palladium-catalyzed oxidative isocyanide-insertion in one pot. This regioselective procedure could construct a wide range of 2-amino-4(3H)-quinazolinones in moderate to excellent yields. Furthermore, the methodology also had distinct advantages of
已经开发了一种有效且实用的两步方法,用于通过在一个反应釜中开合等位酸酐的开环和
钯催化的氧化
异氰酸酯插入来合成2-
氨基-4(3 H)-
喹唑啉酮。该区域选择性程序可以以中等至极好的产率构建广泛的2-
氨基-4(3 H)-
喹唑啉酮类化合物。此外,该方法还具有易于获取的起始材料和操作简便的明显优势。