We report a simple method for coupling of N,N-dialkyl-3-nitroarenes, elemental sulfur, and activated sp3 C–H bonds in 2-methylazaarenes or arylacetic acids to afford derivatives of 2-arylbenzothiazol-5-amines. Only DABCO base was required, and many heterocycles such as imidazoles, oxazoles, quinolines, and thiophenes were compatible with the reaction conditions. Our approach offers a simple route to useful substituted thiazol-5-amines from commercially available nitroarenes.

中文翻译：

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N,N-二烷基-3-硝基苯胺合成2-芳基苯并噻唑-5-胺

我们报告了一种在 2-甲基氮杂芳烃或芳基乙酸中偶联 N,N-二烷基-3-硝基芳烃、元素硫和活化的 sp3 C-H 键的简单方法，以提供 2-芳基苯并噻唑-5-胺的衍生物。只需要 DABCO 碱，许多杂环如咪唑、恶唑、喹啉和噻吩与反应条件相容。我们的方法提供了一种从市售硝基芳烃中获得有用的取代噻唑-5-胺的简单途径。