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- Title
Site-Selective C-H Amidation of Azobenzenes with Dioxazolones under Rhodium Catalysis.
- Authors
Mishra, Neeraj Kumar; Oh, Yongguk; Jeon, Mijin; Han, Sangil; Sharma, Satyasheel; Han, Sang Hoon; Um, Sung Hee; Kim, In Su
- Abstract
The rhodium(III)-catalyzed amidation reaction of azobenzenes with dioxazolones is described. This strategy allows the facile and efficient construction of highly substituted ortho-amidated azobenzenes by direct C-H cleavage approach. A wide range of substrates, excellent levels of chemoselectivity as well as high functional-group tolerance were observed. In addition, this protocol was used to generate an array of ortho-amidated ketazines. Further synthetic transformation of amidated azobenzenes furnished a facile construction of benzimidazole and benzotriazole derivatives.
- Subjects
CARBON-hydrogen bonds; AZOBENZENE; RHODIUM catalysts; BENZIMIDAZOLES; BENZOTRIAZOLE
- Publication
European Journal of Organic Chemistry, 2016, Vol 2016, Issue 29, p4976
- ISSN
1434-193X
- Publication type
Article
- DOI
10.1002/ejoc.201601096