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Duan B, Wu Y, Gao Y, Ying L, Tang J, Hu S, Zhao Q, Song Z. Regioselective peri-C-H selenylation of aromatic compounds with weakly coordinating ketone groups. Chem Commun (Camb) 2022; 58:11555-11558. [PMID: 36165048 DOI: 10.1039/d2cc04030a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and versatile method for peri-C-H selenylation of aromatic compounds bearing ketone groups, including chromones, xanthones, acridinones, quinolinones and naphthoquinones with diselenides under Ru(II) catalysis is presented. Various chromones and diselenides are applicable for this transformation, affording 5-selenyl chromones in a highly regioselective manner in good to excellent yields. This transformation is easy to scale up and the desired products can be further modified. Most importantly, this transformation allows the late-stage selenylation of bioactive compounds. Mechanistic studies show that radicals may be involved in this novel transformation.
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Affiliation(s)
- Bingbing Duan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Yao Wu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Yi Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Linkun Ying
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Jielin Tang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Shiyu Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Qiuhua Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China.
| | - Zengqiang Song
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
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2
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Wang TT, Zhao LM. Synthesis of 2-arylethenesulfonyl fluorides and isoindolinones: Ru-catalyzed C-H activation of nitrones with ethenesulfonyl fluoride. Chem Commun (Camb) 2022; 58:11099-11102. [PMID: 36098079 DOI: 10.1039/d2cc03418b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy for the synthesis of 2-arylethenesulfonyl fluorides from nitrones and ethenesulfonyl fluoride (ESF) by the activation of the C-H bond using an inexpensive and readily available Ru-catalyst has been developed. In this process, the directing group can be concomitantly converted to an amide group. Interestingly, changing the substituent of the nitrogen of nitrones from a tert-butyl to a methyl group resulted in the formation of cyclic isoindolinones. Detailed mechanistic studies are also presented.
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Affiliation(s)
- Tong-Tong Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China.
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China. .,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, 100191, China
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3
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Wang YJ, Wang TT, Liang CC, Li ZH, Zhao LM. Synthesis of Indolo[2,1- a]benzazepinones through Rhodium-Catalyzed Cascade Reactions of 2-Arylindoles with Allyl Alcohols. Org Lett 2021; 23:6272-6277. [PMID: 34328334 DOI: 10.1021/acs.orglett.1c02064] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient synthesis of indolo[2,1-a]benzazepinones through rhodium-catalyzed cascade reactions of 2-arylindoles with allyl alcohols has been developed. This work expands the scope of products that are available through C-H activation/intramolecular annulation reactions of 2-arylindoles in organic synthesis.
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Affiliation(s)
- Yu-Jiao Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Tong-Tong Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Cai-Cai Liang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Zi-Hao Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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4
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Wang TT, Jin HS, Cao MM, Wang RB, Zhao LM. Rh(III)-Catalyzed Regioselective Annulations of 3-Arylisoxazolones and 3-Aryl-1,4,2-dioxazol-5-ones with Propargyl Alcohols: Access to 4-Arylisoquinolines and 4-Arylisoquinolones. Org Lett 2021; 23:5952-5957. [PMID: 34323501 DOI: 10.1021/acs.orglett.1c02049] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The Rh(III)-catalyzed dual directing group assisted C-H activation/annulation of 3-arylisoxazolones with propargyl alcohols has been developed, which expands the application scope of isoxazolones in organic synthesis. This protocol also worked well with 3-aryl-1,4,2-dioxazol-5-ones to produce synthetically and biologically important 4-arylisoquinolones.
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Affiliation(s)
- Tong-Tong Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Man-Man Cao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Ru-Bing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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5
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Jin HS, Du YZ, Zhao QY, Zhao LM. Ru( ii)-Catalyzed C–H activation/annulation reactions of N-aryl-pyrazolidinones with sulfoxonium ylides: synthesis of cinnoline-fused pyrazolidinones. Org Chem Front 2021. [DOI: 10.1039/d1qo01001h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first Ru(ii)-catalyzed cascade C–H activation/annulation reactions of N-aryl-pyrazolidinones with sulfoxonium ylides are reported.
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Affiliation(s)
- Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Ya-Zhen Du
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Qing-Yang Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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