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Zhang W, Liu R, Lv X, Jiang L, Tang S, Liu G, Shen G, Huang X, Ma C, Yang B. Oxidant-Free Electrochemical Direct Oxidative Benzyl Alcohols to Benzyl Aldehydes Using Three-Dimensional Printing PPAR Polyoxometalate. Molecules 2023; 28:6460. [PMID: 37764236 PMCID: PMC10534777 DOI: 10.3390/molecules28186460] [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: 08/21/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
The oxidation of benzyl alcohols is an important reaction in organic synthesis. Traditional methods for benzyl alcohol oxidation have not been widely utilized due to the use of significant amounts of precious metals and environmentally unfriendly reagents. In recent years, electrocatalytic oxidation has gained significant attention, particularly electrochemical anodic oxidation, which offers a sustainable alternative for oxidation without the need for external oxidants or reducing agents. Here, a copper monosubstituted phosphotungstate-based polyacrylate resins (Cu-LPOMs@PPAR) catalyst has been fabricated with immobilization and recyclability using 3D printing technology that can be successfully applied in the electrocatalytic oxidation of benzyl alcohol to benzaldehyde, achieving atom economy and reducing pollution. In this protocol, we obtain benzaldehyde in good yields with excellent functional group toleration under metal-free and oxidant-free conditions. This strategy could provide a new avenue for heterogeneous catalysts in application for enhancing the efficiency and selectivity of electrocatalytic oxidation processes.
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Affiliation(s)
- Wenhui Zhang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Ran Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Xueyan Lv
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
| | - Lirong Jiang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Silu Tang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Gang Liu
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Guodong Shen
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Xianqiang Huang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
| | - Chen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
| | - Bingchuan Yang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China; (W.Z.); (R.L.); (L.J.); (S.T.); (G.S.); (X.H.)
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;
- College of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250013, China
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Khade VV, Bhowmick A, Thube AS, Bhat RG. Direct Access to Strained Fused Dihalo-Aziridino Quinoxalinones via C3-Alkylation Followed by Tandem Cyclization. J Org Chem 2023. [PMID: 37262098 DOI: 10.1021/acs.joc.3c00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Quinoxalinones are a privileged class of compounds, and their structural framework is found in many bioactive compounds, natural compounds, and pharmaceuticals. Quinoxalinone is a promising scaffold for different types of functionalization, and the slight modification of the quinoxalinone skeleton is known to offer a wide range of compounds for drug discovery. Owing to the importance of the quinoxalinone scaffold, we have developed a base-mediated protocol for the C3-alkylation of quinoxalinone followed by tandem cyclization to access novel types of strenuous and fused dihalo-aziridino-quinoxalinone heterocycles via the construction of C-C and C-N bonds. The protocol proved to be simple and practical to access desired fused quinoxalinone heterocycles in excellent yields (up to 98% yield). As an application, the highly functionalized fused dihalo-aziridino-quinoxalinone molecule has been further utilized for mono-dehalogenation under visible light irradiation and selective amide reduction. Moreover, the protocol has also been demonstrated on a gram scale.
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Affiliation(s)
- Vikas V Khade
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Anindita Bhowmick
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Archana S Thube
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
| | - Ramakrishna G Bhat
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Pune, Maharashtra 411008, India
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3
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Liu X, Chu X. Metal-Free Synthesis of Functionalized Quinolines from 2-Styrylanilines and 2-Methylbenzothiazoles/2-Methylquinolines. ACS OMEGA 2023; 8:6940-6944. [PMID: 36844512 PMCID: PMC9948197 DOI: 10.1021/acsomega.2c07736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
A facile functionalization of C(sp3)-H bonds and tandem cyclization strategy to synthesize quinoline derivatives from 2-methylbenzothiazoles or 2-methylquinolines and 2-styrylanilines has been developed. This work avoids the requirement for transition metals, offering a mild approach to activation of C(sp3)-H bonds and formation of new C-C and C-N bonds. This strategy features excellent functional group tolerance and scaled-up synthetic capability, thus providing an efficient and environmentally friendly access to medicinally valuable quinolines.
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Li Y, Song GT, Tang DY, Xu ZG, Chen ZZ. Acid-Promoted Direct C-H Carbamoylation at the C-3 Position of Quinoxalin-2(1 H)-ones with Isocyanide in Water. ACS OMEGA 2023; 8:1577-1587. [PMID: 36643431 PMCID: PMC9835787 DOI: 10.1021/acsomega.2c06946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Described herein is a concise and practical direct amidation at the C-3 position of quinoxalin-2(1H)-ones through an acid-promoted carbamoylation with isocyanide in water. In this conversion, environmentally friendly water and commercial inexpensive isocyanide were used as a solvent and carbamoylation reagent, respectively. This study not only provides a green and efficient strategy for the construction of 3-carbamoylquinoxalin-2(1H)-one derivatives that can be applied to the synthesis of druglike structures but also expands the application of isocyanide in organic chemistry.
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Ogbu IM, Kurtay G, Robert F, Landais Y. Oxamic acids: useful precursors of carbamoyl radicals. Chem Commun (Camb) 2022; 58:7593-7607. [PMID: 35735051 DOI: 10.1039/d2cc01953a] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review article describes the recent development in the chemistry of carbamoyl radicals generated from oxamic acids. This mild and efficient method compares well with previous methods of generation of these nucleophilic radicals. The oxidative decarboxylation of oxamic acids can be mediated through thermal, photochemical, electrochemical or photoelectrochemical means, generating carbamoyl radicals, which may further add to unsaturated systems to provide a broad range of important amides. Oxidative decarboxylation of oxamic acids also offers a straightforward entry for the preparation of urethanes, ureas, and thioureas.
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Affiliation(s)
- Ikechukwu Martin Ogbu
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,Alex Ekwueme Federal University, Department of Chemistry, Faculty of Sciences, Ndufu-Alike Ikwo, Abakaliki, Ebonyi State, Nigeria
| | - Gülbin Kurtay
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France. .,University of Ankara, Department of Chemistry, Faculty of Science, Ankara, Turkey
| | - Frédéric Robert
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
| | - Yannick Landais
- University of Bordeaux, Institute of Molecular Sciences (ISM), UMR-CNRS 5255, 351, Cours de la Libération, 33405 Talence, Cedex, France.
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Wang M, Zhang Z, Xiong C, Sun P, Zhou C. Microwave‐Accelerated Cross‐Dehydrogenative Coupling of Quinoxalin‐2(1
H
)‐ones with Alkanes under Transition‐Metal‐Free Conditions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Min Wang
- Nanjing Normal University Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing 210023 China
- Huaibei Normal University Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education Huaibei Anhui 235000 China
| | - Zhongyi Zhang
- Huaibei Normal University Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education Huaibei Anhui 235000 China
| | - Chunxia Xiong
- Huaibei Normal University Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education Huaibei Anhui 235000 China
| | - Peipei Sun
- Nanjing Normal University Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing 210023 China
| | - Chao Zhou
- Huaibei Normal University Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education Huaibei Anhui 235000 China
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7
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Li J, Hu J, Xiao Y, Yin K, Dan W, Fan S, Jin F, Wu H, Zhang R, Li J. Direct C3-H carbamoylation of quinoxalin-2(1H)-ones with isocyanides enabled by selectfluor II under mild conditions. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2021.153511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Affiliation(s)
| | - Anna Lee
- Department of Chemistry Jeonbuk National University Jeonju 54896 Republic of Korea
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Ma C, Wu Y, Chu X, Yang D, Xie C. Cross-Dehydrogenative Coupling Reaction and Arylation of Quinoxalin-2(1H)-ones under Iodide/Peroxide Conditions. SYNOPEN 2021. [DOI: 10.1055/a-1489-8711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
AbstractA simple method has been developed for the synthesis of 3-(2-oxo-2-phenylethylidene)-3,4-dihydroquinoxalin-2(1H)-one and 3-aryl-quinoxalin-2(1H)-one derivatives through C–H activation of quinoxalin-2(1H)-ones by peroxides and iodide. In this protocol, the peroxide (TBPB) serves as both the radical initiator and aryl source, realizing arylation of quinoxalin-2(1H)-one in a one-step reaction. The methodology has the advantages of being a metal-free strategy and having broad functional group tolerance.
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Affiliation(s)
- Chen Ma
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University
| | - Yujuan Wu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University
| | - Xianglong Chu
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University
| | - Di Yang
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University
| | - Caixia Xie
- School of Chemistry and Chemical Engineering, Shandong University of Technology
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Direct Introduction of Sulfonamide Groups into Quinoxalin‐2(1
H
)‐ones by Cu‐Catalyzed C3‐H Functionalization. Chem Asian J 2020; 15:3365-3369. [DOI: 10.1002/asia.202000916] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Indexed: 12/14/2022]
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12
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Aneeja T, Neetha M, Afsina CMA, Anilkumar G. Progress and prospects in copper-catalyzed C-H functionalization. RSC Adv 2020; 10:34429-34458. [PMID: 35514395 PMCID: PMC9056871 DOI: 10.1039/d0ra06518h] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/02/2020] [Indexed: 01/21/2023] Open
Abstract
Copper-catalyzed C-H functionalization is becoming a significant area in organic chemistry. Copper is now widely used as a catalyst in organic synthesis as it is inexpensive and not very toxic. Functionalization of C-H bonds to construct wide varieties of organic compounds has received much attention in recent times. This review focuses on the recent advances in Cu-catalyzed C-H functionalization and covers literature from 2018-2020.
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Affiliation(s)
- Thaipparambil Aneeja
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India (+91) 481-2731036
| | - Mohan Neetha
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India (+91) 481-2731036
| | - C M A Afsina
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India (+91) 481-2731036
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India (+91) 481-2731036
- Advanced Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University Priyadarsini Hills P.O. Kottayam Kerala 686560 India
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