Sulfamic acid has been found to be an efficient catalyst for the one-pot synthesis of novel 2,5-diaryl-1,3,4-oxadiazoles by condensation of different coumarinoyl hydrazides with various coumarinoyl or quinolinoyl chlorides under microwave irradiation and conventional heating. Some of the advantages of this method are low reaction times, operational simplicity, and high yields. J. Heterocyclic Chem
已发现
氨基磺酸是在微波辐射和常规加热下通过将不同的香豆酰
肼与各种香豆酰或
喹啉酰
氯缩合而一锅合成新型2,5-二芳基-1,3,4-恶二唑的有效
催化剂。该方法的一些优点是反应时间短,操作简便和产率高。J.杂环化学。(2009)