1
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Zhang Z, Zhou Y, Wang J, Zhang Y, Wang L, Liu J, Zhou C, Wang M, Li P. Radical relay cyclization/C-C bond formation of allyloxy-tethered aryl iodides with quinoxalin-2(1 H)-ones via polysulfide anion photocatalysis. Org Biomol Chem 2024; 22:1708-1713. [PMID: 38315045 DOI: 10.1039/d3ob01978k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
A visible-light-induced radical relay cyclization/C-C bond formation of quinoxalin-2(1H)-ones with allyloxy-tethered aryl iodides using polysulfide anions as a photocatalyst is described. This protocol allows efficient access to a variety of complicated molecules bearing both quinoxalin-2(1H)-one and 2,3-dihydrobenzofuran motifs in high yields under mild reaction conditions with a broad range of substrates.
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Affiliation(s)
- Zhongyi Zhang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang, 318000, P. R. China.
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Yaqin Zhou
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang, 318000, P. R. China.
| | - Jiehui Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang, 318000, P. R. China.
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang, 318000, P. R. China.
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
| | - Jie Liu
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Chao Zhou
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Min Wang
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry, Ministry of Education, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
- College of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, P. R. China
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2
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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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He WB, Tang LL, Jiang J, Li X, Xu X, Yang TB, He WM. Paired Electrolysis Enabled Cyanation of Diaryl Diselenides with KSCN Leading to Aryl Selenocyanates. Molecules 2023; 28:molecules28031397. [PMID: 36771059 PMCID: PMC9919590 DOI: 10.3390/molecules28031397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023] Open
Abstract
The first example of paired electrolysis-enabled cyanation of diaryl diselenides, with KSCN as the green cyanating agent, has been developed. A broad range of aryl selenocyanates can be efficiently synthesized under chemical-oxidant- and additive-free, energy-saving and mild conditions.
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Affiliation(s)
- Wei-Bao He
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Luo-Lin Tang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jun Jiang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Xiao Li
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Xinhua Xu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- Correspondence: (X.X.); (W.-M.H.)
| | - Tian-Bao Yang
- National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
| | - Wei-Min He
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Correspondence: (X.X.); (W.-M.H.)
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4
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Shi Y, Hou J, Wang K, Ding Y, Wei T, Yu Z, Su W, Xie Y. Regioselective Benzylation of Quinoxalin‐2(1H)‐ones with Methylarenes Under Transition‐Metal‐Free Conditions. ChemistrySelect 2022. [DOI: 10.1002/slct.202203468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yuan Shi
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
| | - Jiahao Hou
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
| | - Kai Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Yuxin Ding
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
| | - Tingting Wei
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
| | - Zhichen Yu
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
| | - Weike Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
| | - Yuanyuan Xie
- College of Pharmaceutical Science Zhejiang University of Technology Hangzhou 310014 China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Zhejiang University of Technology Hangzhou 310014 China
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province Hangzhou 310014 China
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5
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Sun B, Zhuang X, Yin J, Zhang K, Zhao H, Jin C. Photoredox-Catalyzed Tandem Radical Cyclization/Hydroxylation for the Synthesis of 4-Hydroxyalkyl-3,3-difluoro-γ-lactams. J Org Chem 2022; 87:14177-14185. [PMID: 36173277 DOI: 10.1021/acs.joc.2c01710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The photoredox-catalyzed radical difluoroalkylation/cyclization/hydroxylation cascade reaction of various 2-bromo-2,2-difluoro-N-arylacetamides containing unactivated alkene moieties has been developed, providing green and efficient access to various 4-hydroxyalkyl-3,3-difluoro-γ-lactams. Control experiments confirmed a radical process, and inexpensive air acted as the sole hydroxy resource. In addition, the highlights of this protocol include good tolerance for a variety functional groups, lower photocatalyst loading, and ease of operation.
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Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Xiaohui Zhuang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Jieli Yin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Kesheng Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Haiyun Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China.,College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P. R. China
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6
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Sau S, Mal P. Visible-Light Promoted Regioselective Oxygenation of Quinoxalin-2(1 H)-ones Using O 2 as an Oxidant. J Org Chem 2022; 87:14565-14579. [PMID: 36214497 DOI: 10.1021/acs.joc.2c01960] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A visible-light-mediated sustainable approach for metal-free oxygenation of quinoxalin-2(1H)-one by employing Mes-Acr-MeClO4 as a photocatalyst without using any additive or cocatalyst is reported here. O2 served as the eco-friendly and green oxidant source for this conversion. In addition, the protocol exhibited high regioselectivity and tolerance toward a broad spectrum of functional groups to furnish quinoxaline-2,3-diones in good to excellent yields.
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Affiliation(s)
- Sudip Sau
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhaba National Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhaba National Institute, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
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7
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Gao R, Wang F, Geng X, Li CY, Wang L. Visible-Light-Initiated Difunctionalization of Quinoxalin-2(1 H)-ones with Acyloxy Nitroso Compounds. Org Lett 2022; 24:7118-7122. [DOI: 10.1021/acs.orglett.2c02703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Runye Gao
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Fang Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Xiao Geng
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
| | - Chuan-Ying Li
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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8
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Dharpure PD, Behera M, Khade VV, Thube AS, Bhat RG. Direct Access to Thiocyano-Thioesters from Cyclic Thioacetals via Photoredox Catalysis: An Introduction of Two Functional Groups in One Pot. Org Lett 2022; 24:6919-6924. [PMID: 36121933 DOI: 10.1021/acs.orglett.2c02601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cyanation of organic compounds is an important synthetic transformation and mainly relies on a toxic CN source. Undeniably, thiocyanate salt has emerged as a very mild and environmentally benign CN source, yet its synthetic utility for cyanation is highly limited to very few types of organic compounds. Herein, we report the direct cyanation of cyclic thioacetals for accessing compounds with two different functional groups (thiocyano-thioesters) in one pot using sodium thiocyanate via photoredox catalysis. The protocol has been further extended for the direct cyanation of disulfides and diselenide to access aryl thiocyanates and aryl selenocyanate. A plausible mechanism has been proposed based on a series of control experiments, cyclic voltammetry and Stern-Volmer studies.
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Affiliation(s)
- Pankaj D Dharpure
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India
| | - Mousumi Behera
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India
| | - Vikas V Khade
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India
| | - Archana S Thube
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India
| | - Ramakrishna G Bhat
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pashan, 411008, Pune, Maharashtra, India
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9
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Ma C, Meng H, Li J, Yang X, Jiang Y, Yu B. Photocatalytic
Transition‐Metal‐Free
Direct
3‐Acetalation
of Quinoxaline‐2(
1
H
)‐ones. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chunhua Ma
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Hui Meng
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Jing Li
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Xianguang Yang
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Yuqin Jiang
- Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Engineering Research Centre of Chiral Hydroxyl Pharmaceutical, Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials, School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453007 China
| | - Bing Yu
- Green Catalysis Centre, College of Chemistry Zhengzhou University. Zhengzhou 450001 China
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10
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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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11
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Yadav A, Yadav A, Tripathi S, Dewaker V, Kant R, Yadav PN, Srivastava AK. Copper-Catalyzed Oxidative [3 + 2]-Annulation of Quinoxalin-2(1 H)-one with Oxime Esters toward Functionalized Pyrazolo[1,5- a]quinoxalin-4(5 H)-ones as Opioid Receptor Modulators. J Org Chem 2022; 87:7350-7364. [PMID: 35587158 DOI: 10.1021/acs.joc.2c00563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pyrazolo[1,5-a]quinoxalin-4(5H)-one derivatives as novel opioid receptor modulators have been synthesized via copper-catalyzed oxidative [3 + 2]-annulation of quinoxalin-2(1H)-one and oxime-O-acetates. This hydrazine-free C-C and N-N bond formation strategy starts with the generation of C2N1 synthon using oxime acetate, which reacts in a [3 + 2] manner with quinoxalin-2(1H)-one, followed by oxidative aromatization. The synthesized compounds were tested against opioid receptors, of which eight compounds exhibited an antagonistic effect with EC50 < 5 μM at various opioid receptors. Molecular docking studies were performed to identify the binding of active pyrazolo[1,5-a]quinoxalin-4(5H)-one ligands with hKOR protein. Docking results indicated that compounds 3d and 3g participate in hydrogen bonding with the hydroxyl group of T111 of the active site pocket residue.
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Affiliation(s)
- Anamika Yadav
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Anubhav Yadav
- Neuroscience and Ageing Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Shashank Tripathi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Varun Dewaker
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ruchir Kant
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Prem Narayan Yadav
- Neuroscience and Ageing Biology Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ajay Kumar Srivastava
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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12
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Zhou N, Liu R, Zhang C, Wang K, Feng J, Zhao X, Lu K. Photoinduced Three-Component Difluoroalkylation of Quinoxalinones with Alkenes via Difluoroiodane(III) Reagents. Org Lett 2022; 24:3576-3581. [PMID: 35546558 DOI: 10.1021/acs.orglett.2c01358] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An environmentally friendly strategy for the photocatalyzed three-component reaction between quinoxalinones, alkenes, and hypervalent iodine(III) reagents is disclosed. The new designed difluoroiodane(III) reagent shows excellent reactivity, providing a wide range of difluoroalkyl-substituted quinoxaline-2(1H)-ones in moderate to excellent yields under mild conditions. Experimental studies demonstrated that a difluoroalkyl radical intermediate was involved in this reaction.
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Affiliation(s)
- Ningning Zhou
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
| | - Ruiyue Liu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
| | - Chunmeng Zhang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
| | - Kun Wang
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
| | - Jiaxu Feng
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
| | - Xia Zhao
- College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, China
| | - Kui Lu
- China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science &Technology, Tianjin 300457, China
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13
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Wang L, Li L, Gao Y, Mingli S, Liu J, Li P. Visible‐light‐induced site‐selective difunctionalization of 2,3‐dihydrofuran with quinoxalin‐2(1H)‐ones and peroxides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lei Wang
- Huaibei Normal University Chemistry 100 Dongshan Road 235000 Huaibei CHINA
| | - Laiqiang Li
- Huaibei Normal University Chemistry Huaibei CHINA
| | - Yanhui Gao
- Huaibei Normal University Chemistry Huaibei CHINA
| | - Sun Mingli
- Huaibei Normal University Chemistry Huaibei CHINA
| | - Jie Liu
- Huaibei Normal University Chemistry Huaibei CHINA
| | - Pinhua Li
- Huaibei Normal University Chemistry Huaibei CHINA
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14
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Sau S, Mal P. C‐H Hydroxylation of Quinoxalin‐2(1H)‐ones through ipso‐Substitution Using tert‐Butyl Nitrite. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200425] [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)
- Sudip Sau
- NISER: National Institute of Science Education and Research School of Chemical Sciences IOP Campus, PO Sainik School, Khorda District 752050 Bhubaneswar INDIA
| | - Prasenjit Mal
- NISER Bhubaneswar School of Chemical Sciences PO Bhimpur-PadanpurVia JatniDistrict Khurda 752050 Bhubaneswar INDIA
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15
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Zhang L, He J, Zhang P, Zhu D, Zheng K, Shen C. Visible-light-induced C–H sulfenylation of quinoxalin-2(1H)-ones with disulfides by sustainable cerium catalysis. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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16
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Zhang H, Xu J, Ouyang Y, Yue X, Zhou C, Ni Z, Li W. Molecular oxygen-mediated selective hydroxyalkylation and alkylation of quinoxalin-2(1H)-ones with alkylboronic acids. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Zhu YS, Shi L, Fu L, Chen X, Zhu X, Hao XQ, Song MP. Iodine-catalyzed amination of benzothiazoles with KSeCN in water to access primary 2-aminobenzothiazoles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Wang Z, Liu Q, Liu R, Ji Z, Li Y, Zhao X, Wei W. Visible-light-initiated 4CzIPN catalyzed multi-component tandem reactions to assemble sulfonated quinoxalin-2(1H)-ones. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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Zhang L, He J, Zhang P, Zheng K, Shen C. Visible-light-induced decarboxylative alkylation of quinoxalin-2(1H)-ones with phenyliodine(III) dicarboxylates by cerium photocatalysis. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112145] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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20
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Zhang Y, Chen Y, Sun J, Wang J, Zhou M. Visible‐light‐promoted Radical Cyclization/Arylation Cascade for the Construction of
α,
α
‐Difluoro‐
γ
‐Lactam‐Fused
Quinoxalin‐2(
1
H
)‐Ones. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100787] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yun‐Chao Zhang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Yang Chen
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Jing‐Yun Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
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21
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He L, Liang C, Ouyang Y, Li L, Guo Y, Zhang P, Li W. α-Functionalization of ketones promoted by sunlight and heterogeneous catalysis in the aqueous phase. Org Biomol Chem 2022; 20:790-795. [PMID: 34994749 DOI: 10.1039/d1ob02249k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, a protocol that combines heterogeneous catalysis and solar photocatalysis for the regioselective α-substitution of asymmetric ketones with quinoxalinones has been reported. The result indicates that the reaction is more likely to occur on the α-carbon. This strategy provides a green and efficient way for the α-functionalization of ketones. A singlet oxygen involved mechanism is suggested for the transformation.
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Affiliation(s)
- Lei He
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Chenfeng Liang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yani Ouyang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Lin Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yirui Guo
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Pengfei 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, China.
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
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22
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Sun X, Qu C, Ma C, Zhao X, Chai G, Jiang Z. Photoredox Catalytic Cascade Radical Addition to Construct 1,4- Diketone-Functionalized Quinoxalin-2(1 H)-one Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202201025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Bhuyan M, Sharma S, Baishya G. Metal-free three-component cyanoalkylation of quinoxalin-2(1H)-ones with vinylarenes and azobis(alkylcarbonitrile)s. Org Biomol Chem 2022; 20:1462-1474. [DOI: 10.1039/d1ob02143e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A K2S2O8-mediated C3 cyanoalkylation of quinoxalin-2(1H)-ones via a three-component radical cascade reaction with vinylarenes and azobis(alkylcarbonitrile)s has been achieved.
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Affiliation(s)
- Mayurakhi Bhuyan
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Suraj Sharma
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Gakul Baishya
- Chemical Science & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat-785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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24
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Peng S, Liu JJ, Yang L. Alkylation of quinoxalin-2(1 H)-ones using phosphonium ylides as alkylating reagents. Org Biomol Chem 2021; 19:9705-9710. [PMID: 34726225 DOI: 10.1039/d1ob01858b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical and efficient methodology for the construction of 3-alkylquinoxalinones through base promoted direct alkylation of quinoxalin-2(1H)-ones with phosphonium ylides as alkylating reagents under metal- and oxidant-free conditions was developed. Various 3-alkylquinoxalin-2(1H)-ones were easily obtained in good to excellent yields. Tentative mechanistic studies suggest that this reaction is likely to involve a nucleophilic addition-elimination process.
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Affiliation(s)
- Sha Peng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Hunan, 411105, PR China.
| | - Jun-Jia Liu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Hunan, 411105, PR China.
| | - Luo Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Hunan, 411105, PR China.
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25
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Rapid alkenylation of quinoxalin-2(1H)-ones enabled by the sequential Mannich-type reaction and solar photocatalysis. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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26
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Pei C, Chen X, Li L, Li J, Zou D, Wu Y, Wu Y. Copper-catalyzed C3-amination of quinoxalin-2(1H)-ones: Using Selectfluor as a mild oxidant. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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27
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Zhang HY, Chen J, Lu CC, Han YP, Zhang Y, Zhao J. Visible-Light-Induced C(sp 2)-C(sp 3) Cross-Dehydrogenative-Coupling Reaction of N-Heterocycles with N-Alkyl- N-methylanilines under Mild Conditions. J Org Chem 2021; 86:11723-11735. [PMID: 34369160 DOI: 10.1021/acs.joc.1c01207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Disclosed herein is a cross-dehydrogenative-coupling reaction of N-heterocycles including 1,2,4-triazine-3,5(2H, 4H)-diones and quinoxaline-2(1H)-ones with N-methylanilines to form C(sp2)-C(sp3) under visible-light illumination and ambient air at room temperature. In this process, easily available Ru(bpy)3Cl2·6H2O serves as the catalyst, and air acts as the green oxidant. This method features high atom economy, environmental friendliness, and convenient operation and provides an efficient and practical access to aminomethyl-substituted N-heterocycles with extensive functional group compatibility in 40-86% yields.
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Affiliation(s)
- Hong-Yu Zhang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Jianjun Chen
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Cong-Cong Lu
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Ya-Ping Han
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Yuecheng Zhang
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Jiquan Zhao
- School of Chemical Engineering and Technology, Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, Tianjin Key Laboratory of Chemical Process Safety, Hebei University of Technology, Tianjin 300130, P. R. China
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28
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Liu F, Ye ZP, Hu YZ, Gao J, Zheng L, Chen K, Xiang HY, Chen XQ, Yang H. N, N, N', N'-Tetramethylethylenediamine-Enabled Photoredox-Catalyzed C-H Methylation of N-Heteroarenes. J Org Chem 2021; 86:11905-11914. [PMID: 34344150 DOI: 10.1021/acs.joc.1c01325] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Aiming at the valuable methylation process, readily available and inexpensive N,N,N',N'-tetramethylethylenediamine (TMEDA) was first identified as a new methyl source in photoredox-catalyzed transformation in this work. By virtue of this simple methylating reagent, a facile and practical protocol for the direct C-H methylation of N-heteroarenes was developed, featuring mild reaction conditions, broad substrate scope, and scalability. Mechanistic studies disclosed that a sequential photoredox, base-assisted proton shift, fragmentation, and tautomerization process was essentially involved.
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Affiliation(s)
- Fang Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Zhi-Peng Ye
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Yuan-Zhuo Hu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jie Gao
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Lan Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China.,Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, P. R. China
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29
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Chakraborty N, Dahiya A, Rakshit A, Modi A, Patel BK. An expedient route to tricyanovinylindoles and indolylmaleimides from o-alkynylanilines utilising DMSO as a one-carbon synthon. Org Biomol Chem 2021; 19:6847-6857. [PMID: 34318852 DOI: 10.1039/d1ob01086g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd(ii)/Cu(ii) catalysed domino synthesis of tricyanovinylindoles has been achieved using DMSO as a one-carbon synthon. The reaction proceeds via the construction of 2-aryl-3-formyl indole followed by sequential addition of malononitrile and a CN resulting in two C-C, one C[double bond, length as m-dash]C and one C-N bonds in the final product. Furthermore, post-synthetic modification results in the unprecedented formation of 4-cyano-3-indolylmaleimides. Photophysical studies of selected compounds show emission in the visible range.
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Affiliation(s)
- Nikita Chakraborty
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Assam, India.
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30
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Sun B, Shi R, Zhang K, Tang X, Shi X, Xu J, Yang J, Jin C. Photoinduced homolytic decarboxylative acylation/cyclization of unactivated alkenes with α-keto acid under external oxidant and photocatalyst free conditions: access to quinazolinone derivatives. Chem Commun (Camb) 2021; 57:6050-6053. [PMID: 34036995 DOI: 10.1039/d1cc02415a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and green strategy for the synthesis of acylated quinazolinone derivatives via photo-induced decarboxylative cascade radical acylation/cyclization of quinazolinone bearing unactivated alkenes has been developed. The protocol provides a novel route to access acyl radicals from α-keto acids through a self-catalyzed energy transfer process. Most importantly, the reaction proceeded smoothly without any external photocatalyst, additive or oxidant, and could be easily scaled-up in flow conditions with sunlight irradiation.
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Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China.
| | - Rongcheng Shi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Kesheng Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Xiaoli Tang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Xiayue Shi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Jiayun Xu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China.
| | - Jin Yang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, P. R. China. and College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, P. R. China
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31
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Visible-light-induced chemoselective reactions of quinoxalin-2(1H)-ones with alkylboronic acids under air/N2 atmosphere. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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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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33
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Zhan Y, Li Y, Tong J, Liu P, Sun P. Electrochemical Oxidative C−H Cyanation of Quinoxalin‐2(1
H
)‐ones with TMSCN. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100348] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yanling Zhan
- College of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal University Nanjing 210023 People's Republic of China
| | - Yifan Li
- College of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal University Nanjing 210023 People's Republic of China
| | - Jinwen Tong
- College of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal University Nanjing 210023 People's Republic of China
| | - Ping Liu
- College of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal University Nanjing 210023 People's Republic of China
| | - Peipei Sun
- College of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Nanjing Normal University Nanjing 210023 People's Republic of China
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34
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Wang K, Wei T, Zhang Y, Hou J, Bai R, Xie Y. Metal-free regioselective C-H amination for the synthesis of pyrazole-containing 2 H-indazoles. Org Biomol Chem 2021; 19:1787-1794. [PMID: 33555276 DOI: 10.1039/d0ob02485f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and practical regioselective approach for the C-H amination of 2H-indazoles under transition-metal-free conditions was developed. A series of substrates were tested showing eminent functional group tolerance and affording the C-N functionalization products in good to excellent yields. Mechanism studies revealed that a radical process was involved in this transformation.
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Affiliation(s)
- Kai Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Tingting Wei
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.
| | - Yujia Zhang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.
| | - Jiahao Hou
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.
| | - Renren Bai
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.
| | - Yuanyuan Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China and College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China.
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35
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Bao H, Lin Z, Jin M, Zhang H, Xu J, Chen B, Li W. Visible-light-induced C H arylation of quinoxalin-2(1H)-ones in H2O. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152841] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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36
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Sun B, Shi X, Zhuang X, Huang P, Shi R, Zhu R, Jin C. Photoinduced EDA Complexes Enabled Radical Tandem Cyclization/Arylation of Unactivated Alkene with 2-Amino-1,4-naphthoquinones. Org Lett 2021; 23:1862-1867. [DOI: 10.1021/acs.orglett.1c00268] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiayue Shi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaohui Zhuang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Panyi Huang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Rongcheng Shi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Rui Zhu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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37
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Meng N, Lv Y, Liu Q, Liu R, Zhao X, Wei W. Visible-light-induced three-component reaction of quinoxalin-2(1H)-ones, alkenes and CF3SO2Na leading to 3-trifluoroalkylated quinoxalin-2(1H)-ones. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.11.034] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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38
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Yang Q, Yan XT, Feng CT, Chen DX, Yan ZZ, Xu K. Tandem Strecker/C(sp 3)–H amination reactions for the construction of cyanide-functionalized imidazo[1,5- a]pyridines with NH 4SCN as a cyanating agent. Org Chem Front 2021. [DOI: 10.1039/d1qo01060c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An I2O5-mediated multicomponent reaction that allows the single-step construction of cyano-functionalized imidazo[1,5-a]pyridines with molecular diversity was realized for the first time.
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Affiliation(s)
- Qing Yang
- School of Pharmacy, Anhui University of Chinese Medicine; Anhui academy of Chinese medicine, Hefei, 230012, China
- Anhui University of Science and Technology, Huainan, 232001, China
| | - Xiao-Tong Yan
- Anhui University of Science and Technology, Huainan, 232001, China
| | - Cheng-Tao Feng
- School of Pharmacy, Anhui University of Chinese Medicine; Anhui academy of Chinese medicine, Hefei, 230012, China
- Anhui University of Science and Technology, Huainan, 232001, China
| | - De-Xiang Chen
- Anhui University of Science and Technology, Huainan, 232001, China
| | - Zhong-Zhong Yan
- Anhui University of Science and Technology, Huainan, 232001, China
| | - Kun Xu
- Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, China
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39
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Zhuang X, Shi X, Zhu R, Sun B, Su W, Jin C. Photocatalytic intramolecular radical cyclization involved synergistic SET and HAT: synthesis of 3,3-difluoro-γ-lactams. Org Chem Front 2021. [DOI: 10.1039/d0qo01188f] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A mild and metal-free protocol for visible-light induced intramolecular radical cyclization of N-allyl(propargyl)-2-bromo-2,2-difluoro-N-arylacetamide has been developed.
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Affiliation(s)
- Xiaohui Zhuang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- PR China
| | - Xiayue Shi
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- PR China
| | - Rui Zhu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- PR China
| | - Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- PR China
| | - WeiKe Su
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- PR China
- College of Pharmaceutical Sciences
| | - Can Jin
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- PR China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
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40
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Yang X, Meng WD, Xu XH, Huang Y. Photoredox-catalyzed 2,2,2-trifluoroethylation and 2,2-difluoroethylation of alkenes with concomitant introduction of a quinoxalin-2(1 H)-one moiety. Org Chem Front 2021. [DOI: 10.1039/d1qo01170g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A photoredox-catalyzed three-component radical cascade reaction of alkenes, quinoxalin-2(1H)-ones, and ICH2CF3/ICH2CF2H is developed.
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Affiliation(s)
- Xiu Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Wei-Dong Meng
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Yangen Huang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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41
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Kiran, Rani P, Chahal S, Sindhu J, Kumar S, Varma RS, Singh R. Transition metal-free C-3 functionalization of quinoxalin-2(1 H)-ones: recent advances and sanguine future. NEW J CHEM 2021. [DOI: 10.1039/d1nj03445f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A gradual shift from metal-catalyzed to metal-free methods is occurring, as the latter are more environmentally benign. This review discusses sustainable protocols for the construction of C–C, C–N, C–P, C–S, and C–O bonds via C–H functionalization of quinoxalin-2(1H)-ones.
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Affiliation(s)
- Kiran
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Payal Rani
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Sandhya Chahal
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Sudhir Kumar
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Rajvir Singh
- Department of Chemistry, COBS&H, CCSHAU, Hisar, 125004, India
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42
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Sun B, Zhu R, Zhuang X, Shi X, Huang P, Yan Z, Yu C, Jin C. Visible Light/Tertiary Amine Promoted Synergistic Hydroxydifluoroacetamidation of Unactivated Alkenes under Air. Org Lett 2020; 23:617-622. [DOI: 10.1021/acs.orglett.0c04216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Bin Sun
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Rui Zhu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiaohui Zhuang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiayue Shi
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Panyi Huang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Zhiyang Yan
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Can Jin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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43
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Xu J, Yang H, He L, Huang L, Shen J, Li W, Zhang P. Synthesis of ( E)-Quinoxalinone Oximes through a Multicomponent Reaction under Mild Conditions. Org Lett 2020; 23:195-201. [PMID: 33354970 DOI: 10.1021/acs.orglett.0c03918] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a novel method for the gram-scale synthesis of (E)-quinoxalinone oximes through a multicomponent reaction under mild conditions is described. Such a transformation was performed under transition-metal-free conditions, affording (E)-oximes in a moderate-to-good yield through recrystallization. Our methodology demonstrates a successful combination of a Mannich-type reaction and radical coupling, providing a green and practical approach for the synthesis of potentially bioactive quinoxalinone-containing molecules.
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Affiliation(s)
- Jun Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Huiyong Yang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Lei He
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Lin Huang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Jiabin Shen
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
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44
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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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45
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Sun M, Wang L, Zhao L, Wang Z, Li P. Visible‐Light Photoredox Catalyzed C−N Coupling of Quinoxaline‐2(1
H
)‐ones with Azoles without External Photosensitizer. ChemCatChem 2020. [DOI: 10.1002/cctc.202000459] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mingli Sun
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 P. R. China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 P. R. China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 P. R. China
| | - Lulu Zhao
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 P. R. China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 P. R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 P. R. China
| | - Pinhua Li
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 P. R. China
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46
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Li W, Cai H, Huang L, He L, Zhang Y, Xu J, Zhang P. Iron(III)-Mediated Rapid Radical-Type Three-Component Deuteration of Quinoxalinones With Olefins and NaBD 4. Front Chem 2020; 8:606. [PMID: 32850638 PMCID: PMC7417774 DOI: 10.3389/fchem.2020.00606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/10/2020] [Indexed: 12/20/2022] Open
Abstract
Iron(III)-promoted rapid three-component deuteration of quinoxalinones with olefins and NaBD4 is reported for the first time, which provides a novel, economic, and efficient method for the rapid synthesis of deuterated quinoxalinones. In this transformation, a radical pathway is involved according to the results of control experiments.
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Affiliation(s)
- Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, China
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47
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Tan Y, Wang J, Zhang HY, Zhang Y, Zhao J. The C3-H Bond Functionalization of Quinoxalin-2(1 H)-Ones With Hypervalent Iodine(III) Reagents. Front Chem 2020; 8:582. [PMID: 32850624 PMCID: PMC7432307 DOI: 10.3389/fchem.2020.00582] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/05/2020] [Indexed: 12/19/2022] Open
Abstract
The modification of quinoxalin-2(1H)-ones via direct C-H bond functionalization has begun to receive widespread attention, due to quinoxalin-2(1H)-one derivatives' various biological activities and pharmaceutical properties. This mini review concentrates on the accomplishments of arylation, trifluoromethylation, alkylation, and alkoxylation of quinoxalin-2(1H)-ones with hypervalent iodine(III) reagents as reaction partners or oxidants. The reaction conditions and mechanisms are compared and discussed in detail.
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Affiliation(s)
- Yushi Tan
- Tianjin Key Laboratory of Chemical Process Safety, Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - Jiabo Wang
- Tianjin Key Laboratory of Chemical Process Safety, Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - Hong-Yu Zhang
- Tianjin Key Laboratory of Chemical Process Safety, Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - Yuecheng Zhang
- Tianjin Key Laboratory of Chemical Process Safety, Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - Jiquan Zhao
- Tianjin Key Laboratory of Chemical Process Safety, Hebei Provincial Key Laboratory of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
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48
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Ghosh P, Das S. Recent advances and perspectives on the synthesis and C–H bond functionalization of quinoxalin-2(1H)-one. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1765257] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry, University of North Bengal, Darjeeling, India
| | - Sajal Das
- Department of Chemistry, University of North Bengal, Darjeeling, India
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49
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Gao Y, Zhao L, Xiang T, Li P, Wang L. Photoinitiated decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-ones with potassium 2,2-difluoro-2-arylacetates in water. RSC Adv 2020; 10:10559-10568. [PMID: 35492892 PMCID: PMC9050393 DOI: 10.1039/d0ra02059a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/05/2020] [Indexed: 12/19/2022] Open
Abstract
An efficient visible-light-induced decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-one with potassium 2,2-difluoro-2-arylacetate in water at room temperature was developed.
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Affiliation(s)
- Yanhui Gao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Lulu Zhao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Tianyi Xiang
- College of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
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50
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Niu K, Song L, Hao Y, Liu Y, Wang Q. Electrochemical decarboxylative C3 alkylation of quinoxalin-2(1H)-ones with N-hydroxyphthalimide esters. Chem Commun (Camb) 2020; 56:11673-11676. [DOI: 10.1039/d0cc05391k] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Electrochemical decarboxylative C3 alkylation of a wide range of quinoxalin-2(1H)-ones under metal- and additive-free conditions was reported.
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Affiliation(s)
- Kaikai Niu
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Lingyun Song
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Yanke Hao
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry
- Research Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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