1
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Shi SH, Li HY, Liu HY, Tian R, Zhu HT. Redox Relay-Induced C-S Radical Cross-Coupling Strategy: Application in Nontraditional Site-Selective Thiocyanation of Quinoxalinones. J Org Chem 2024; 89:6826-6837. [PMID: 38669146 DOI: 10.1021/acs.joc.4c00215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
Oxidative cross-coupling is a powerful strategy to form C-heteroatom bonds. However, oxidative cross-coupling for constructing C-S bond is still a challenge due to sulfur overoxidation and poisoning transition-metal catalysts. Now, electrochemical redox relay using sulfur radicals formed in situ from inorganic sulfur source offers a solution to this problem. Herein, electrochemical redox relay-induced C-S radical cross-coupling of quinoxalinones and ammonium thiocyanate with bromine anion as mediator is presented. The electrochemical redox relay comprised initially the formation of sulfur radical via indirect electrochemical oxidation, simultaneous electrochemical reduction of the imine bond, electro-oxidation-triggered radical coupling involving dearomatization-rearomatization, and the reformation of the imine bond through anodic oxidation. Applying this strategy, various quinoxalinones bearing multifarious electron-deficient/-rich substituents at different positions were well compatible with moderate to excellent yields and good steric hindrance compatibility under constant current conditions in an undivided cell without transition-metal catalysts and additional redox reagents. Synthetic applications of this methodology were demonstrated through gram-scale preparation and follow-up transformation. Notably, such a unique strategy may offer new opportunities for the development of new quinoxalinone-core leads.
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Affiliation(s)
- Shi-Hui Shi
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Hao-Yu Li
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Hao-Yang Liu
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Rui Tian
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
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2
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Wang D, Zeng L, Shi J, Gao S, Shi L, Sun S, Liang D. Electrophotocatalysis Versus Indirect Electrolysis: Electrochemical Selenocyclization of 3-Aza-1,5-dienes Facilitated by Energy Transfer, Direct Photolysis or N-Hydroxyphthalimide. Chemistry 2024:e202400280. [PMID: 38651795 DOI: 10.1002/chem.202400280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/14/2024] [Accepted: 04/23/2024] [Indexed: 04/25/2024]
Abstract
Three hybrid electrochemical protocols, which involve the energy transfer, direct photolysis and N-hydroxyphthalimide catalyst, respectively, are presented for the selenylation/cyclization of the fragile substrates of 3-aza-1,5-dienes with diorganyl diselenides to afford 3-selenomethyl-4-pyrrolin-2-ones. The two electrophotocatalytic reactions and the indirect electrolysis one are both regioselective and external-oxidant- and transition-metal-free, and are associated with a broad substrate scope and high Se-economy, and all three methods are amenable to gram-scale syntheses, late-stage functionalizations, sunlight-induced experiments and all-solar-driven syntheses.
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Affiliation(s)
- Dongyin Wang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
| | - Li Zeng
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
| | - Jifu Shi
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
| | - Shulin Gao
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
| | - Lou Shi
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
| | - Shaoguang Sun
- Medical College, Panzhihua University, 10 Airport Road, Panzhihua, 617000, China
| | - Deqiang Liang
- Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device, School of Chemistry and Chemical Engineering, Kunming University, 2 Puxin Road, Kunming, 650214, China
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3
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Luo QX, Ji HT, Lu YH, Wang KL, Ou LJ, He WM. Selectfluor-Mediated Electrophilic Annulation of 2-Alkynyl Biaryls with Diorganyl Diselenides. J Org Chem 2023. [PMID: 38016176 DOI: 10.1021/acs.joc.3c01271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
A general and efficient method for the synthesis of various selanyl phenanthrenes/polycyclic heteroaromatics through the electrophilic annulation of 2-alkynyl biaryls with diorganyl diselenides under metal-free and mild conditions was established. The sulfanyl phenanthrene was also obtained in moderate yields.
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Affiliation(s)
- Qing-Xia Luo
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Hong-Tao Ji
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Yu-Han Lu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Ke-Li Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Li-Juan Ou
- School of Materials Science and Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Wei-Min He
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
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4
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Xia JH, Chen Q, Yuan JW, Shi WS, Yang LR, Xiao YM. Selectfluor-mediated tandem cyclization of enaminones with diselenides toward the synthesis of 3-selenylated chromones. RSC Adv 2023; 13:26948-26959. [PMID: 37692339 PMCID: PMC10486202 DOI: 10.1039/d3ra05246j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023] Open
Abstract
A practical and metal-free approach for the regioselective selenation of chromones employing Selectfluor reagent under mild conditions is described. The developed method is suitable for a wide substrate scope and affords 3-selenylated chromones in good to excellent yield with high selectivity. An ionic mechanism is proposed for this transformation. Furthermore, the application of potassium thiocyanate with enaminones for the synthesis of thiocyano chromones in this transformation is also successful.
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Affiliation(s)
- Ji-Hong Xia
- ENOVA Pharmaceutical Research (Nanjing) Co. Ltd Nanjing 210033 P. R. China
| | - Qian Chen
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Wei-Shuo Shi
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
| | - Yong-Mei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology Zhengzhou 450001 China
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5
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Zhang S, Yuan J, Huang G, Ma C, Yang J, Yang L, Xiao Y, Qu L. Visible-Light-Induced Intramolecular Tandem Cyclization of Unactivated Indoloalkynes for the Synthesis of Sulfonylated and Selenylated Indolo[1,2- a]quinolines. J Org Chem 2023; 88:11712-11727. [PMID: 37530760 DOI: 10.1021/acs.joc.3c00997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
A convenient and efficient visible-light-induced method has been developed for the construction of sulfonated and selenylated indolo[1,2-a]quinolines through sulfonyl or selenyl radical-initiated tandem cyclization of unactivated alkynes with sodium sulfinates or diaryl diselenides under mild conditions. This protocol, which simply utilizes visible light as the safe and eco-friendly energy source and an inexpensive and nontoxic organic dye as a photocatalyst without the aid of an external photocatalyst, provides various sulfonyl- and selenyl-containing indolo[1,2-a]quinolines in moderate to good yields.
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Affiliation(s)
- Shouren Zhang
- Henan Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, P. R. China
| | - Jinwei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Guangchao Huang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Chengjia Ma
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Jingjing Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Liangru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Yongmei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China
| | - Lingbo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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6
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Choudhuri T, Paul S, Das S, Pathak DD, Bagdi AK. Visible-Light-Mediated Regioselective C3-H Selenylation of Pyrazolo[1,5- a]pyrimidines Using Erythrosine B as Photocatalyst. J Org Chem 2023. [PMID: 37302135 DOI: 10.1021/acs.joc.3c00720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A visible-light-induced efficient methodology has been developed for the C-H selenylation of pyrazolo[1,5-a]pyrimidine derivatives employing erythrosine B as the photocatalyst. This is the first report on the regioselective selenylation of pyrazolo[1,5-a]pyrimidines. The efficiency of this methodology for the selenylation of different electron-rich heterocycles like pyrazole, indole, imidazo[1,2-a]pyridine, imidazo[2,1-b]thiazole, and 4-(phenylamino)-2H-chromen-2-one has been also demonstrated. The exploration of erythrosine B as a photocatalyst with a simple and mild procedure, wide substrate scope, and practical applicability and the employment of eco-friendly energy, oxidant, and solvent are the attractive characteristics of this methodology.
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Affiliation(s)
| | - Suvam Paul
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Sourav Das
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
| | - Devendra Deo Pathak
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM), Dhanbad 826 004, India
| | - Avik Kumar Bagdi
- Department of Chemistry, University of Kalyani, Kalyani 741235, India
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7
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Belladona AL, Cardoso Dilelio M, Cargnelutti R, Barcellos T, Cruz Silveira C, Schumacher RF. Direct and Regioselective C−H Selenylation of 4‐Aminocoumarin Derivatives Mediated by Selectfluor®. ChemistrySelect 2023. [DOI: 10.1002/slct.202300377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Andrei Lucca Belladona
- Department of Chemistry Federal University of Santa Maria (UFSM) 97105 900 Santa Maria RS Brazil
| | - Marina Cardoso Dilelio
- Department of Chemistry Federal University of Santa Maria (UFSM) 97105 900 Santa Maria RS Brazil
| | - Roberta Cargnelutti
- Department of Chemistry Federal University of Santa Maria (UFSM) 97105 900 Santa Maria RS Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products University of Caxias do Sul (UCS) 95070 560 Caxias do Sul RS Brazil
| | - Claudio Cruz Silveira
- Department of Chemistry Federal University of Santa Maria (UFSM) 97105 900 Santa Maria RS Brazil
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8
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Yuan JW, Chen Q, Wu WT, Zhao JJ, Yang LR, Xiao YM, Mao P, Qu LB. Selectfluor-mediated construction of 3-arylselenenyl and 3,4-bisarylselenenyl spiro[4.5]trienones via cascade annulation of N-phenylpropiolamides with diselenides. NEW J CHEM 2022. [DOI: 10.1039/d2nj00869f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A cascade annulation of N-phenylpropiolamides with diselenides leading to the construction of 3-arylselenenyl spiro[4.5]trienones was realized under mild conditions with Selectfluor as the sole oxidant.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Qian Chen
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Wen-Tao Wu
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Jian-Jun Zhao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yong-Mei Xiao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Pu Mao
- School of Chemistry & Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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