AbstractWe 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.
摘要我们报道了一种简单的方法,用于耦合N,N-二烷基-3-硝基芳烃,元素硫和2-甲基氮杂芳烃或芳乙酸中的活化sp3 C-H键,以提供2-芳基苯并噻唑-5-胺衍生物。仅需要DABCO碱,并且许多杂环如咪唑,噁唑,喹啉和噻吩都与反应条件兼容。我们的方法提供了一种从商业上可用的硝基芳烃合成有用的取代噻唑-5-胺的简单途径。