A series of new 1,3,4-oxadiazoles conjugated to aromatic substituents by an azo linker was synthesized in a four-step reaction sequence, involving cyclodehydration of a N,N'-diacylhydrazine fragment and dehydrogenation of the neighboring hydrazine fragment of the intermediate N,N'-diarylcarbonohydrazide.

中文翻译：

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从 N,N'-二芳基碳酰肼高效合成新型 2-Aryl-5-phenylazenyl-1,3,4-oxadiazole 衍生物

一系列新的 1,3,4-恶二唑通过偶氮连接体与芳香取代基共轭，在四步反应序列中合成，包括 N,N'-二酰基肼片段的环化脱水和中间体相邻肼片段的脱氢N,N'-二芳基碳酰肼。