One-pot synthesis of 2-amino-4(3H)-quinazolinones via ring-opening of isatoic anhydride and palladium-catalyzed oxidative isocyanide-insertion
作者:Fei Ji、Mei-Fang Lv、Wen-Bin Yi、Chun Cai
DOI:10.1039/c4ob00484a
日期:——
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。