Enantioselective synthesis of 2,3-dihydroquinazolinones (DHQZs) were accomplished using polymer supported BINOL-derived phosphoric acid as the catalyst through intramolecular amidation of N-Boc imines and 2-aminobenzamide, the DHQZ was obtained with up to 96 % ee. The catalyst is easily separable from the reaction mixture and can be used multiple times without any loss of activity.Graphical Abstract
使用聚合物负载的 BINOL 衍生的
磷酸作为催化剂,通过 N-Boc
亚胺和 2-
氨基苯甲酰胺的分子内酰胺化完成了 2,3-二氢
喹唑啉酮 (DHQZ) 的对映选择性合成,获得了高达 96% ee 的 DHQZ。该催化剂很容易从反应混合物中分离出来,可以多次使用而不会损失任何活性。图形摘要