N-chlorosuccinimide and 1,8-diazabicyclo[5.4.0]undec-7-ene oxidatively cyclizes structurally diverse acyl hydrazone, thereby providing an efficient and convenient method for the synthesis of various 2,5-disubstituted 1,3,4-oxadiazoles. The salient features of this method are mild reaction conditions, short reaction time, excellent yields, and simple workup procedure.
N-
氯代琥珀
酰亚胺和
1,8-二氮杂双环[5.4.0]十一碳-7-烯的混合物氧化环化结构多样的酰基腙,从而为合成各种2,5-二取代的1,3、 4-恶二唑。该方法的显着特点是反应条件温和、反应时间短、收率高、后处理程序简单。