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Li MR, Zheng MY, Wang DC, Guo HM. Pd-catalyzed 5- exo-dig cyclization/etherification cascade of N-propargyl arylamines for the synthesis of polysubstituted furans. Chem Commun (Camb) 2024. [PMID: 38967357 DOI: 10.1039/d4cc02255f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
A method for the synthesis of furans bearing indoline skeletons was developed via an intramolecular palladium-catalyzed 5-exo-dig cyclization/etherification cascade of N-propargyl arylamines containing a 1,3-dicarbonyl side chain. This method realized the first capture of vinyl carbopalladiums by ketones as O-nucleophiles and showed a wide range of substrate tolerability affording trisubstituted furans in various yields. The enantioselective version for this domino process and diverse derivatizations of the reaction products were also studied.
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Affiliation(s)
- Meng-Ru Li
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Meng-Yao Zheng
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Dong-Chao Wang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Hai-Ming Guo
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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Fan J, Zu Y, Zheng Z, Song L, Wang Y, Zhou Z, Liu Y, Xu S. A silver-mediated radical process of β-keto sulfones for the synthesis of 2,3-diacyl furans. Org Biomol Chem 2024; 22:1770-1774. [PMID: 38324332 DOI: 10.1039/d3ob02079g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
A facile and efficient method for constructing 2,3-diacyl trisubstituted furans via a silver-mediated radical process of β-keto sulfones is developed. The reaction mechanism has been carefully investigated, revealing that the transformation proceeds through a radical pathway, leading to moderate to good yields of desired products.
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Affiliation(s)
- Jian Fan
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Yanhong Zu
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Zhimin Zheng
- University of Science and Technology of China, Hefei 230026, China
| | - Lulu Song
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Yating Wang
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Zhou Zhou
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Yujun Liu
- Anhui Academy of Science and Technology, Hefei 230088, China.
| | - Shuwen Xu
- Anhui Academy of Science and Technology, Hefei 230088, China.
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