Synthesis of (2H)-Indazoles through Rh(III)-Catalyzed Annulation Reaction of Azobenzenes with Sulfoxonium Ylides,The Journal of Organic Chemistry

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Synthesis of (2H)-Indazoles through Rh(III)-Catalyzed Annulation Reaction of Azobenzenes with Sulfoxonium Ylides
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2018-03-16 00:00:00 , DOI: 10.1021/acs.joc.8b00501
Hyunjung Oh ₁ , Sangil Han ₁ , Ashok Kumar Pandey ₁ , Sang Hoon Han ₁ , Neeraj Kumar Mishra ₁ , Saegun Kim ₁ , Rina Chun ₁ , Hyung Sik Kim ₁ , Jihye Park ₁ , In Su Kim ₁

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The rhodium(III)-catalyzed C–H functionalization followed by intramolecular annulation reactions between azobenzenes and sulfoxonium ylides is described. This protocol leads to the efficient formation of 3-acyl (2H)-indazoles with a range of substrate scope. A high level of chemoselectivity and functional group tolerance of this transformation were also observed.

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