The usage of potassium phthalimide (PPI) for the simple and green one-step multicomponent synthesis of Hantzsch 1,4-dihydropyridines, polyhydroquinolines, 3,4-dihydropyrimidin-2(1H)-ones/thiones, and octahydroquinazolinones under solventless conditions at 120 °C is reported. The method is operationally simple, environmentally benign, and has relatively high yields. The other merits of this method include efficient, clean, green, and catalyst reusability.
本文报道了在无溶剂条件下,于120°C下使用邻苯二甲
酰亚胺钾(P
PI)进行Hantzsch 1,4-
二氢吡啶、多氢
喹啉、3,4-二氢
嘧啶-2(1H)-酮/
硫酮以及八氢
喹唑啉酮的一步多组分简单绿色合成。该方法操作简便,环境友好,且产率相对较高。此外,该方法还具有高效、清洁、绿色以及催化剂可重复使用的优点。