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Fang C, Li L, Yang H, Kong C, Zhang J, Xie M, Wu J. Rh(III)-catalyzed selective C2 C-H acyloxylation of indoles. Chem Commun (Camb) 2023; 60:216-219. [PMID: 38050725 DOI: 10.1039/d3cc05799b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Herein, we present the first highly regio- and chemoselective C2 C-H acyloxylation of indole under rhodium catalysis and an N-quinolinyl auxiliary. This strategy accommodates a wide range of indoles and structurally diverse carboxylic acids with good reaction efficiencies to yield functionalized indoles. The utility of this logic was demonstrated by the concise synthesis of the functionalized 2-oxindole derivatives. Preliminary mechanistic studies indicate that catalyst turnover of RhIII-RhIV/V-RhII/III-RhIII might be involved in this catalytic C-H transformation.
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Affiliation(s)
- Chaoying Fang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Li Li
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Haitao Yang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Caiyang Kong
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
| | - Jiaping Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China.
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