Co(III)-Catalyzed C5–H Amination of Thiochromones with Anthranils

The incorporation of a nitrogen unit into target molecules by generating nitrene species has become a hot topic in modern organic synthesis. In this study, we report a Co(III)-catalyzed C5–H amination of thiochromones with anthranils as aminating surrogates. The significance of this coupling reaction was demonstrated via a broad range of substrates and complete site selectivity. Moreover, post-transformations of synthesized products are described.