Halogenated aromatic compounds are the cores of many pharmaceutical, agricultural and chemical products but they are commonly prepared using electrophilic halogenation reactions in non-green chlorinated solvents under harsh conditions. A separate problem happens in the aromatic halogenation of thioarenes because they readily undergo oxidative side-reactions. Herein we report an environmentally benign electrophilic bromination of aromatics using an indole-catalytic protocol, which is suitable for a wide range of substrates including thioarenes.

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对环境有利的吲哚催化的硫代芳烃和其他芳族化合物的位置选择性卤化

卤代芳族化合物是许多医药，农业和化学产品的核心，但它们通常是在苛刻条件下在非绿色氯化溶剂中使用亲电子卤化反应制备的。另一个问题是硫代芳烃的芳族卤化，因为它们容易发生氧化副反应。在本文中，我们报告了使用吲哚催化方案的芳香族化合物的对环境无害的亲电子溴化反应，该方法适用于包括硫代芳烃在内的各种底物。