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Dapkekar AB, Satyanarayana G. Electrochemically driven regioselective construction of 4-sulfenyl-isochromenones from o-alkynylbenzoates and diaryl disulfides. Org Biomol Chem 2024. [PMID: 39140309 DOI: 10.1039/d4ob01137f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Herein, we report a convenient and environmentally friendly electrochemical technique that enables the regioselective construction of 4-sulfenyl-1H-isochromen-1-ones using readily available precursors such as o-alkynyl benzoates and diaryl disulfides. This electrochemical process has been accomplished through constant current electrolysis in an undivided cell under external acid, catalyst, oxidant, or metal-free conditions. Owing to this protocol's mild reaction conditions, the products are obtained in good to very good yields, demonstrating a broad substrate scope and functional group tolerance.
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Affiliation(s)
- Anil Balajirao Dapkekar
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502284, India.
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana 502284, India.
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2
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Chouhan A, Ucheniya K, Yadav L, Jat PK, Gurjar A, Badsara SS. Electrochemical direct C-H mono and bis-chalcogenation of indolizine frameworks under oxidant-free conditions. Org Biomol Chem 2023; 21:7643-7653. [PMID: 37682240 DOI: 10.1039/d3ob01109g] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Herein, we disclosed a sustainable electrochemical approach for site-selective C-H mono and bis-chalcogenation (sulfenylation or selenylation) of indolizine frameworks. Diversely functionalized disulfides and diselenides possessing EDGs and EWGs were successfully reacted with a variety of indolizines to directly access sulfenylated/selenylated indolizines in 40-96% yields. A mechanistic radical pathway was also validated with control experiments and cyclic voltammogram data.
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Affiliation(s)
- Amreen Chouhan
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
| | - Kusum Ucheniya
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
| | - Lalit Yadav
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
| | - Pooja Kumari Jat
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
| | - Asha Gurjar
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
| | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India.
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3
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Ucheniya K, Chouhan A, Yadav L, Jat PK, Badsara SS. Electrochemical, Regioselective, and Stereoselective Synthesis of Allylic Thioethers and Selenoethers under Transition-Metal-Free and Oxidant-Free Conditions. J Org Chem 2023; 88:6096-6107. [PMID: 37076426 DOI: 10.1021/acs.joc.3c00473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
We disclose a mild, scalable, electricity-promoted cross coupling protocol between allylic iodides and disulfides/diselenides for the formation of C-S/Se bonds in the absence of transition metals, bases, and oxidants. The stereochemically different densely functionalized allylic iodides gave regio- and stereoselective diverse thioethers in good yields. This strategy demonstrates a sustainable promising approach for the synthesis of allylic thioethers in 38-80% yields. This protocol also provides a synthetic platform for the synthesis of allylic selenoethers. A single-electron transfer radical pathway was also validated with radical scavenger experiments and cyclic voltammetry data.
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Affiliation(s)
- Kusum Ucheniya
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, JLN Marg, Jaipur, Rajasthan 302004, India
| | - Amreen Chouhan
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, JLN Marg, Jaipur, Rajasthan 302004, India
| | - Lalit Yadav
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, JLN Marg, Jaipur, Rajasthan 302004, India
| | - Pooja Kumari Jat
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, JLN Marg, Jaipur, Rajasthan 302004, India
| | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, JLN Marg, Jaipur, Rajasthan 302004, India
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4
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Chen WC, Bai R, Cheng WL, Peng CY, Reddy DM, Badsara SS, Lee CF. Base-mediated chalcogenoaminative annulation of 2-alkynylanilines for direct access to 3-sulfenyl/selenyl-1 H-indoles. Org Biomol Chem 2023; 21:3002-3013. [PMID: 36942565 DOI: 10.1039/d3ob00279a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
An efficient and transition metal-free synthesis of 3-sulfenyl/selenyl-1H-indoles via a base-assisted chalcogenoaminative annulation of 2-alkynyl aniline with disulfides/diselenides is described. A series of 2-alkynylanilines were found compatible with dichalcogenides in this transformation providing 3-sulfenyl/selenyl-1H-indoles in good to excellent yields. The presented methodology has the advantages of easily available raw materials, functional group tolerance, and a wide range of substrates that provide access to 3-sulfenylindoles and 3-selenylindoles.
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Affiliation(s)
- Wei-Ching Chen
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Rekha Bai
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Wan-Lin Cheng
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | - Chun-Yu Peng
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
| | | | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India
| | - Chin-Fa Lee
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan 402, Republic of China.
- i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung City 402, Taiwan, Republic of China
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung City 402, Taiwan, Republic of China
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5
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Wang L, Ning Z, Xu Z, Liu R, Du Z. Electrochemical Oxidation Involving Sulfonyl Hydrazine for the Synthesis of 2‐Sulfonyl Quinolines/Pyridines. ChemistrySelect 2023. [DOI: 10.1002/slct.202205013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Luyao Wang
- College of Chemistry and Chemical Engineering Northwest Normal University 967 Anning East Road Lanzhou 730070 China
| | - Zhitao Ning
- College of Chemistry and Chemical Engineering Northwest Normal University 967 Anning East Road Lanzhou 730070 China
| | - Zheng Xu
- College of Chemistry and Chemical Engineering Northwest Normal University 967 Anning East Road Lanzhou 730070 China
| | - Ruikai Liu
- College of Chemistry and Chemical Engineering Northwest Normal University 967 Anning East Road Lanzhou 730070 China
| | - Zhengyin Du
- College of Chemistry and Chemical Engineering Northwest Normal University 967 Anning East Road Lanzhou 730070 China
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6
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Xu Y, Liu Y, Zhang Y, Yang K, Wang Y, Peng J, Shao X, Bai Y. Nonbasic Synthesis of Thioethers via Nickel-Catalyzed Reductive Thiolation Utilizing NBS-Like N-Thioimides as Electrophilic Sulfur Donors. J Org Chem 2023; 88:2773-2783. [PMID: 36758172 DOI: 10.1021/acs.joc.2c02360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The nonbasic synthesis of unsymmetrical thioethers via nickel-catalyzed reductive thiolation between aryl(hetero) iodides and N-thioimides is illustrated. N-Bromosuccinimide (NBS)-like N-thioimides were found quite reactive toward thiolation with carbon electrophiles, and a series of structurally varied thioethers were successfully prepared under mild reaction conditions. The transformation was featured with the new application of the NBS-like reagents, good functional group tolerance, and late-stage modification of biologically active scaffolds, thus providing an expeditious and efficient platform to construct polyfunctional thioethers.
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Affiliation(s)
- Yuenian Xu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Yong Liu
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Yan Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Kefang Yang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Yan Wang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Jiajian Peng
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Xinxin Shao
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
| | - Ying Bai
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, Zhejiang, People's Republic of China
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7
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Kumar Dabaria K, Bai R, Singh Badsara S. Electricity Promoted Chemoselective Functionalization of Alkenes: Diastereoselective Synthesis of Oxindole Containing Thioethers and Selenoethers. ChemistrySelect 2022. [DOI: 10.1002/slct.202202992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kamlesh Kumar Dabaria
- MFOS Laboratory, Department of Chemistry University of Rajasthan JLN Marg, Jaipur Rajasthan India 302004
| | - Rekha Bai
- MFOS Laboratory, Department of Chemistry University of Rajasthan JLN Marg, Jaipur Rajasthan India 302004
| | - Satpal Singh Badsara
- MFOS Laboratory, Department of Chemistry University of Rajasthan JLN Marg, Jaipur Rajasthan India 302004
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8
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Rufino-Felipe E, Valdes H, Morales-Morales D. C‐S cross‐coupling reactions catalyzed by well‐defined copper and nickel complexes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ernesto Rufino-Felipe
- Instituto de Quimica UNAM: Universidad Nacional Autonoma de Mexico Instituto de Quimica Inorganic Chemistry MEXICO
| | - Hugo Valdes
- University of Girona - Montilivi Campus: Universitat de Girona - Campus de Montilivi Chemistry SPAIN
| | - David Morales-Morales
- Instituto de Quimica. Universidad Nacional Autonoma de Mexico Quimica inorganica Ciudad UniversitariaCircuito Exterior S/NCoyoacan 04510 Mexico City MEXICO
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