An efficient and facile synthesis of 3,5-di(hetero)aryl-1,2,4-thiadiazoles by oxidative dimerisation of thioamides by grinding with NBS under solvent-free conditions at room temperature has been developed. The efficiency of this reaction was demonstrated by the compatibility with trifluoromethyl, methyl, methoxy, chloro, pyridyl and thienyl groups. This method has notable advantages in terms of short reaction times, high yields and is a more practical alternative to the existing methods to access these compounds.
在室温无溶剂条件下,通过使用 NBS 研磨硫代酰胺氧化二聚物,开发出了一种高效、简便的 3,5- 二(杂)芳基-1,2,4-噻二唑合成方法。该反应与三氟甲基、甲基、甲氧基、氯基、吡啶基和噻吩基的相容性证明了其效率。这种方法具有反应时间短、产率高的显著优势,是获取这些化合物的现有方法之外的一种更实用的替代方法。