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.