1
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Murugesan T, Moulana Mahal SH, Arayil Vennoli K, Karthikeyan D, Kaliyamoorthy A. Copper-Catalyzed Regioselective Imidation of 2-Pyridones. Org Lett 2024; 26:3048-3053. [PMID: 38578090 DOI: 10.1021/acs.orglett.4c00681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
We demonstrate a ligand- and glovebox-free regioselective direct C(3)-H imidation of 2-pyridones and also benzylic-type imidation of 2-pyridones bearing a methyl substituent employing Cu(OAc)2·H2O as the catalyst and N-fluorobenzenesulfonimide (NFSI) as an imidating reagent. A broad range of imidated 2-pyridone derivatives is made up to excellent yields. The present strategy operates well on a gram scale, and the ensuing product can be readily subjected to mono- and bis-desulfonylation reactions.
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Affiliation(s)
- Tamilarasu Murugesan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Shanawas Hussain Moulana Mahal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Kalyanakrishnan Arayil Vennoli
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Dharsan Karthikeyan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Alagiri Kaliyamoorthy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
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2
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Shan Y, Huang G, Yu JT, Pan C. Rh(III)‐catalyzed C6‐selective C–H 3‐oxoalkylation of 2‐pyridones with allylic alcohols. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yujia Shan
- Changzhou University School of Petrochemical Engineering CHINA
| | - Gao Huang
- Changzhou University School of Petrochemical Engineering CHINA
| | - Jin-Tao Yu
- Changzhou University School of Petrochemical Engineering Changzhou 213000 Changzhou CHINA
| | - Changduo Pan
- Jiangsu University of Technology School of Chemical and Environmental Engineering CHINA
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3
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Zhang Q, Miao YH, Liu T, Yun YL, Sun XY, Yang T, Sun J. Natural source, bioactivity and synthesis of 3-Arylcoumarin derivatives. J Enzyme Inhib Med Chem 2022; 37:1023-1042. [PMID: 35438580 PMCID: PMC9037183 DOI: 10.1080/14756366.2022.2058499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
3-arylcoumarins with different pharmacological properties widely exist in a variety of natural plants. The extensive research on 3-arylcoumarins was attributed to its therapeutic and relatively easy isolation. Therefore, 3-arylcoumarins can be recognised as useful structures for the design of novel compounds with potential pharmacological interest, particularly in the fields of anti-inflammatory, anti-cancer, antioxidant, Monoamine oxidase (MAO) enzyme inhibition, etc. The current review highlights the biological activities, design, and chemical synthetic methods of 3-arylcoumarins derivatives as well as their important natural product sources.
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Affiliation(s)
- Qiang Zhang
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yu-Hang Miao
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Teng Liu
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yin-Ling Yun
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiao-Ya Sun
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Tao Yang
- Department of Thoracic and Cardiovascular Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, Chongqing, China
| | - Jie Sun
- Institute of Materia Medica, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, Shandong, China
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4
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Moazzam A, Khodadadi M, Jafarpour F, Ghandi M. Dual Role of Oxoaldehydes: Divergent Synthesis of 3-Aryl- and 3-Aroylcoumarins. J Org Chem 2022; 87:3630-3637. [PMID: 35112865 DOI: 10.1021/acs.joc.1c02159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A facile and efficient synthetic approach to various valuable 3-aryl- and 3-aroylcoumarins by the direct arylation and aroylation of coumarins with glyoxals in a metal-free manner is presented. The aryl glyoxal is for the first time recognized to serve as an aryl surrogate in addition to its role as an aroyl transfer reagent via a simple switch in reaction conditions. The approach accommodates a broad substrate scope and high yields of the two types of cross-coupling reactions starting from identical starting materials.
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Affiliation(s)
- Ali Moazzam
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6619 Tehran, Iran
| | - Meysam Khodadadi
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6619 Tehran, Iran
| | - Farnaz Jafarpour
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6619 Tehran, Iran
| | - Mehdi Ghandi
- School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6619 Tehran, Iran
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5
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Sun Y, Li X, Yuan J, Yu J, Liu S. CuI-Catalyzed Regioselective Synthesis of 3-Arylcoumarins with Arylamines under Mild Conditions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108050] [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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6
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Eliandro da Silva, Jr. P, Melo SMGD, Helder de Paula M, Vessecchi R, Opatz T, Day J, Ganesan A, da Silva Emery F. Growth vector elaboration of fragments: regioselective functionalization of 5-hydroxy-6-azaindazole and 3-hydroxy-2,6-naphtyridine. Org Biomol Chem 2022; 20:7483-7490. [DOI: 10.1039/d2ob00968d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article discusses the reactivity of an 6-azaindazole (1) and a 2,6-naphthyridine (2), proposed to be “heteroaromatic rings of the future” which would be useful for fragment-based drug discovery (FBDD)...
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7
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Singh S, Trivedi L, Vasudev PG, Passarella D, Negi AS. An Efficient Merging of DBU/Enolate and DBU/Benzyl Bromide Organocycles for the Synthesis of alpha Benzylated1-Indanone Derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj00783e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The merging of dual organocycles of the bicyclic amidine base 1,8-diazabicyclo[5.4.0]undec-7-en (DBU) was demonstrated for the synthesis of alpha benzylated 1-indanones. A highly reactive enolate intermediate was formed in the...
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8
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Uçar S, Daştan A. Recent Advances in the Transition-Metal-Free Arylation of Heteroarenes. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1543-3743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractTransition-metal-free arylation reactions have attracted considerable attention for economic and environmental reasons over the past 40 years. In recent years, much effort has been made to develop efficient transition-metal-free approaches for the arylation of heteroarenes. Covering the literature from 2015 to early 2021, this review aims to provide a thorough overview of the synthetic and mechanistic aspects of these atom-economical and environmentally benign reactions.1 Introduction2 Arylation of Pre-functionalized Heteroarenes2.1 Arylation of Heteroaryl Halides2.2 Decarboxylative Arylation of Heteroarenes3 Direct C–H Arylation of Heteroarenes3.1 C(sp2)–H Arylation3.2 C(sp3)–H Arylation4 N-Arylation of Heteroarenes5 Summary and Outlook
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9
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Yadav N, Sangwan S, Kumar R, Chauhan S, Duhan A, Singh A, Arya RK. Comprehensive Overview of Progress in Functionalization of 2‐Pyridone and 2, 4 ‐Dihydroxy Pyridine: Key Constituents of Vital Natural Products. ChemistrySelect 2021. [DOI: 10.1002/slct.202102941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Neelam Yadav
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Sarita Sangwan
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Ravi Kumar
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
- MAP Section Department of Genetics and Plant Breeding Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Sonu Chauhan
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Anil Duhan
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Ajay Singh
- Department of Chemistry Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
| | - Rajesh K. Arya
- MAP Section Department of Genetics and Plant Breeding Chaudhary Charan Singh Haryana Agricultural University Hisar Haryana India 125004
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10
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Matos MJ, Uriarte E, Santana L. 3-Phenylcoumarins as a Privileged Scaffold in Medicinal Chemistry: The Landmarks of the Past Decade. Molecules 2021; 26:6755. [PMID: 34771164 PMCID: PMC8587835 DOI: 10.3390/molecules26216755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 12/27/2022] Open
Abstract
3-Phenylcoumarins are a family of heterocyclic molecules that are widely used in both organic and medicinal chemistry. In this overview, research on this scaffold, since 2010, is included and discussed, focusing on aspects related to its natural origin, synthetic procedures and pharmacological applications. This review paper is based on the most relevant literature related to the role of 3-phenylcoumarins in the design of new drug candidates. The references presented in this review have been collected from multiple electronic databases, including SciFinder, Pubmed and Mendeley.
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Affiliation(s)
- Maria J Matos
- Centro de Investigação em Química da Universidade do Porto (CIQUP), Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eugenio Uriarte
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Santiago 7500912, Chile
| | - Lourdes Santana
- Departamento de Química Orgánica, Facultade de Farmacia, Universidade Santiago de Compostela, 15782 Santiago de Compostela, Spain
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11
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Niwetmarin W, Saruengkhanphasit R, Eurtivong C, Ruchirawat S. Visible-light-mediated decarboxylative alkylation of 2-pyridone derivatives via a C3-selective C-H functionalization. Org Biomol Chem 2021; 19:9231-9236. [PMID: 34647954 DOI: 10.1039/d1ob01829a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A direct C-H functionalization approach to access C3-alkylated 2-pyridone derivatives is reported. This study utilizes N-hydroxyphthalimide (NHPI) esters of various carboxylic acids as sources of alkyl radicals by reductive cleavage under photocatalytic reaction conditions. The carbon-carbon bond formation occurred site-selectively at C3 of 2-pyridone to give the desired products in moderate to good yields. This method enables a faster access to C3-alkylated pyridone compounds which can be applied to the synthesis of small molecule drugs.
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Affiliation(s)
- Worawat Niwetmarin
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand. .,The Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok 10400, Thailand
| | - Rungroj Saruengkhanphasit
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
| | - Chatchakorn Eurtivong
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
| | - Somsak Ruchirawat
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand. .,The Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok 10400, Thailand.,Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
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12
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Kittikool T, Phakdeeyothin K, Chantarojsiri T, Yotphan S. Manganese‐Promoted Regioselective Direct
C3
‐Phosphinoylation of 2‐Pyridones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tanakorn Kittikool
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University Rama VI Road 10400 Bangkok Thailand
| | - Kunita Phakdeeyothin
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University Rama VI Road 10400 Bangkok Thailand
| | - Teera Chantarojsiri
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University Rama VI Road 10400 Bangkok Thailand
| | - Sirilata Yotphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University Rama VI Road 10400 Bangkok Thailand
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13
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Wang X, He Z, Xu X, Zhao H, Pan Y, Li H, Xu L. Rh(III)‐catalyzed C6‐selective Acylmethylation and Carboxymethylation of 2‐Pyridones with Diazo Compounds. ChemCatChem 2021. [DOI: 10.1002/cctc.202002016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xinyu Wang
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Zhongyu He
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Xin Xu
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Haoqiang Zhao
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Yixiao Pan
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Huanrong Li
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 P.R. China
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14
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Yin G, Li Y, Wang RH, Li JF, Xu XT, Luan YX, Ye M. Ligand-Controlled Ni(0)–Al(III) Bimetal-Catalyzed C3–H Alkenylation of 2-Pyridones by Reversing Conventional Selectivity. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00750] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ge Yin
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yue Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Rong-Hua Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jiang-Fei Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Yu-Xin Luan
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Mengchun Ye
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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15
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Hazra S, Hirano K, Miura M. Rhodium-Catalyzed C4-Selective C-H Alkenylation of 2-Pyridones by Traceless Directing Group Strategy. Org Lett 2021; 23:1388-1393. [PMID: 33555184 DOI: 10.1021/acs.orglett.1c00050] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A rhodium-catalyzed C4-selective C-H alkenylation of 3-carboxy-2-pyridones with styrenes has been developed. The carboxylic group at the C3 position works as the traceless directing group, and the corresponding C4-alkenylated 2-pyridones are obtained exclusively with concomitant decarboxylation. Unlike the reported procedures, the exclusive C4 selectivity is uniformly observed even in the presence of potentially more reactive C-H bonds at the C5 and C6 positions. By using this strategy, the multiply substituted 2-pyridone can be prepared via sequential C-H functionalization reactions.
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Affiliation(s)
- Sunit Hazra
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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16
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Biswas A, Maity S, Pan S, Samanta R. Transition Metal‐Catalysed Direct C−H Bond Functionalizations of 2‐Pyridone Beyond C3‐Selectivity. Chem Asian J 2020; 15:2092-2109. [PMID: 32500612 DOI: 10.1002/asia.202000506] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/02/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Aniruddha Biswas
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, West Bengal India
| | - Saurabh Maity
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, West Bengal India
- Current Address: Institute of Organic and Biomolecular ChemistryGeorg-August University Goettingen 37077 Germany
| | - Subarna Pan
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, West Bengal India
| | - Rajarshi Samanta
- Department of ChemistryIndian Institute of Technology Kharagpur Kharagpur 721302, West Bengal India
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17
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Sar S, Chauhan J, Sen S. Generation of Aryl Radicals from Aryl Hydrazines via Catalytic Iodine in Air: Arylation of Substituted 1,4-Naphthoquinones. ACS OMEGA 2020; 5:4213-4222. [PMID: 32149251 PMCID: PMC7057683 DOI: 10.1021/acsomega.9b04014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/06/2020] [Indexed: 06/10/2023]
Abstract
Arylated building blocks or heterocycles are key to myriad applications, including pharmaceutical drug discovery, materials sciences, and many more. Herein, we have reported a mild and efficient strategy for generation of aryl radicals by reacting appropriate aryl hydrazines with catalytic iodine in open air. The aryl radicals were quenched by diversely substituted 1,4-napthoquinones present in the reaction mixture to afford diversely substituted 2,3-napthoquinones in moderate to excellent yield. Control experiments provided insights into the putative reaction mechanism.
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18
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Transition-metal-free direct cross-dehydrogenative coupling reactions of quinolinones with ethers. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Moazzam A, Jafarpour F. Chlorophyll-catalyzed photochemical regioselective coumarin C–H arylation with diazonium salts. NEW J CHEM 2020. [DOI: 10.1039/d0nj02012e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A metal-free, direct C–H arylation of coumarins with aryl diazonium salts at room temperature using chlorophyll as a green photosensitizer is devised.
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Affiliation(s)
- Ali Moazzam
- School of Chemistry
- College of Science
- University of Tehran
- 14155-6455 Tehran
- Iran
| | - Farnaz Jafarpour
- School of Chemistry
- College of Science
- University of Tehran
- 14155-6455 Tehran
- Iran
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20
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Karmakar U, Samanta R. A directing group free Pd(ii)-catalysed desulfitative C6-arylation of 2-pyridone using an arylsulfonyl chloride. Org Biomol Chem 2020; 18:8079-8083. [DOI: 10.1039/d0ob01716g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heteroatom-containing directing group free C6-arylation of 2-pyridone.
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Affiliation(s)
- Ujjwal Karmakar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Rajarshi Samanta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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21
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Murugesh N, Karvembu R, Vedachalam S. The base-induced regioselective radical arylation of 3-aminochromone with aryl hydrazine. Org Biomol Chem 2020; 18:7884-7891. [DOI: 10.1039/d0ob01689f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A simple and efficient direct radical C-2 arylation of 3-aminochromone derivatives with aryl hydrazine under basic conditions is described.
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Affiliation(s)
- Nithya Murugesh
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli-620015
- India
| | - Ramasamy Karvembu
- Department of Chemistry
- National Institute of Technology
- Tiruchirappalli-620015
- India
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22
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Fu Y, Wang Z, Zhang Q, Li Z, Liu H, Bi X, Wang J. Ru(ii)-catalyzed C6-selective C–H acylmethylation of pyridones using sulfoxonium ylides as carbene precursors. RSC Adv 2020; 10:6351-6355. [PMID: 35496007 PMCID: PMC9049633 DOI: 10.1039/c9ra10749e] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 01/27/2020] [Indexed: 02/02/2023] Open
Abstract
In this study, we describe a method using sulfoxonium ylides as carbene precursors to achieve C6-selective acylmethylation of pyridones catalyzed by a ruthenium(ii) complex. This approach featured mild reaction conditions, moderate to excellent yields, high step economy, and had excellent functional group tolerance with good site selectivity. Besides, gram-scale preparation, synthetic utility, and mechanistic studies were conducted. It offers a direct and efficient way to synthesize pyridone derivatives. In this study, we describe a method using sulfoxonium ylides as carbene precursors to achieve C6-selective acylmethylation of pyridones catalyzed by a ruthenium(ii) complex.![]()
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Affiliation(s)
- Yangjie Fu
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Zhaohui Wang
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Qiyu Zhang
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Zhiyu Li
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hong Liu
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Xiaoling Bi
- Jiangsu Key Laboratory of Drug Design and Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Jiang Wang
- State Key Laboratory of Drug Research
- Key Laboratory of Receptor Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
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23
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Kocaoğlu E, Talaz O, Çavdar H, Şentürk M, Supuran CT, Ekinci D. Determination of the inhibitory effects of N-methylpyrrole derivatives on glutathione reductase enzyme. J Enzyme Inhib Med Chem 2019; 34:51-54. [PMID: 30362388 PMCID: PMC6211254 DOI: 10.1080/14756366.2018.1520228] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 08/27/2018] [Accepted: 09/03/2018] [Indexed: 12/26/2022] Open
Abstract
Glutathione reductase (GR) is a crucial antioxidant enzyme which is responsible for the maintenance of antioxidant GSH molecule. Antimalarial effects of some chemical molecules are attributed to their inhibition of GR, thus inhibitors of this enzyme are expected to be promising candidates for the treatment of malaria. In this work, GR inhibitory properties of N-Methylpyrrole derivatives are reported. It was found that all compounds have better inhibitory activity than the strong GR inhibitor N,N-bis(2-chloroethyl)-N-nitrosourea, especially three molecules, 8 m, 8 n, and 8 q, were determined to be the most powerful among them. Findings of our study indicates that these Schiff base derivatives are strong GR inhibitors which can be used as leads for designation of novel antimalarial candidates.
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Affiliation(s)
- Esma Kocaoğlu
- Kamil Ozdag Science Faculty, Karamanoglu Mehmet Bey University, Karaman, Turkey
| | - Oktay Talaz
- Kamil Ozdag Science Faculty, Karamanoglu Mehmet Bey University, Karaman, Turkey
| | - Hüseyin Çavdar
- Education Faculty, Dumlupınar University, Kütahya, Turkey
| | - Murat Şentürk
- Pharmacy Faculty, Agri Ibrahim Cecen University, Agri, Turkey
| | | | - Deniz Ekinci
- Ondokuz Mayis University, Faculty of Agriculture, Department of Agricultural Biotechnology, Samsun, Turkey
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24
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Zhao H, Xu X, Luo Z, Cao L, Li B, Li H, Xu L, Fan Q, Walsh PJ. Rhodium(i)-catalyzed C6-selective C-H alkenylation and polyenylation of 2-pyridones with alkenyl and conjugated polyenyl carboxylic acids. Chem Sci 2019; 10:10089-10096. [PMID: 32055363 PMCID: PMC6991184 DOI: 10.1039/c9sc03672e] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/09/2019] [Indexed: 01/02/2023] Open
Abstract
A versatile Rh(i)-catalyzed C6-selective decarbonylative C-H alkenylation of 2-pyridones with readily available, and inexpensive alkenyl carboxylic acids has been developed. This directed dehydrogenative cross-coupling reaction affords 6-alkenylated 2-pyridones that would otherwise be difficult to access using conventional C-H functionalization protocols. The reaction occurs with high efficiency and is tolerant of a broad range of functional groups. A wide scope of alkenyl carboxylic acids, including challenging conjugated polyene carboxylic acids, are amenable to this transformation and no addition of external oxidant is required. Mechanistic studies revealed that (1) Boc2O acts as the activator for the in situ transformation of the carboxylic acids into anhydrides before oxidative addition by the Rh catalyst, (2) a decarbonylation step is involved in the catalytic cycle, and (3) the C-H bond cleavage is likely the turnover-limiting step.
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Affiliation(s)
- Haoqiang Zhao
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
- Roy and Diana Vagelos Laboratories , Penn/Merck Laboratory for High-Throughput Experimentation , Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , USA .
| | - Xin Xu
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
| | - Zhenli Luo
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
| | - Lei Cao
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
| | - Bohan Li
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
| | - Huanrong Li
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
| | - Lijin Xu
- Department of Chemistry , Renmin University of China , Beijing 100872 , China .
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry , Chinese Academy of Sciences , Beijing , 100190 , China .
| | - Qinghua Fan
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry , Chinese Academy of Sciences , Beijing , 100190 , China .
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories , Penn/Merck Laboratory for High-Throughput Experimentation , Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104-6323 , USA .
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25
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Savchuk MI, Shtaitz YK, Kopchuk DS, Zyryanov GV, Eltsov OS, Pospelova TА, Rusinov VL, Chupakhin ON. Efficient one-step synthesis of 3-aryl-2-pyridones from 6-aryl-1,2,4-triazin-5-ones. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02566-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Katsina T, Papoulidou KE, Zografos AL. Umpolung-like Cross-coupling of Tosylhydrazones with 4-Hydroxy-2-pyridones under Palladium Catalysis. Org Lett 2019; 21:8110-8115. [DOI: 10.1021/acs.orglett.9b03119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tania Katsina
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | | | - Alexandros L. Zografos
- Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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27
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Transition metal free K2CO3 mediated thioarylation, selenoarylation and arylation of 2-aminomaleimides at ambient temperature. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130486] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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28
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29
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Li R, Shi T, Chen XL, Lv QY, Zhang YL, Peng YY, Qu LB, Yu B. Visible-light-promoted organic dye-catalyzed sulfidation and phosphorylation of arylhydrazines toward aromatic sulfides and diarylphosphoryl hydrazides. NEW J CHEM 2019. [DOI: 10.1039/c9nj03692j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Visible-light-promoted sulfidation and phosphorylation of arylhydrazines for the synthesis of aromatic sulfides and diarylphosphoryl hydrazides were developed using the organic dyes rose bengal and Na2-eosin Y as photocatalysts, respectively.
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Affiliation(s)
- Rui Li
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Tao Shi
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Xiao-Lan Chen
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Qi-Yan Lv
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
- Henan Nonferrous Metals Geological Exploration Institute
| | - Yin-Li Zhang
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Yu-Yu Peng
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science & Technology
- Changsha 410114
- China
| | - Ling-Bo Qu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Bing Yu
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- China
- Henan Nonferrous Metals Geological Exploration Institute
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30
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Hosseinian A, Mohammadi R, Ahmadi S, Monfared A, Rahmani Z. Arylhydrazines: novel and versatile electrophilic partners in cross-coupling reactions. RSC Adv 2018; 8:33828-33844. [PMID: 35548837 PMCID: PMC9086722 DOI: 10.1039/c8ra06423g] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/06/2018] [Indexed: 11/23/2022] Open
Abstract
Arylhydrazines are extremely valuable compounds in organic chemistry that are widely used for the synthesis of a variety of biologically active molecules such as indoles, indazoles, pyrazoles, aryltriazoles, β-lactams and quinazolines. These compounds have also been widely utilized as arylation agents in oxidative cross-coupling reactions. In this review, we will highlight the most important explorations and developments in the carbon-carbon and carbon-heteroatom (nitrogen, phosphorus, sulfur, and selenium) cross-coupling of arylhydrazines. The literature has been surveyed from 2001 to June 2018.
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Affiliation(s)
- Akram Hosseinian
- School of Engineering Science, College of Engineering, University of Tehran P. O. Box 11365-4563 Tehran Iran
| | - Robab Mohammadi
- Department of Chemistry, Payame Noor University P. O. Box 19395-3697 Tehran Iran
| | - Sheida Ahmadi
- Department of Chemistry, Payame Noor University P. O. Box 19395-3697 Tehran Iran
| | - Aazam Monfared
- Department of Chemistry, Payame Noor University P. O. Box 19395-3697 Tehran Iran
| | - Zahra Rahmani
- Department of Chemistry, Tabriz Branch, Islamic Azad University Tabriz Iran
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31
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Maity S, Das D, Sarkar S, Samanta R. Direct Pd(II)-Catalyzed Site-Selective C5-Arylation of 2-Pyridone Using Aryl Iodides. Org Lett 2018; 20:5167-5171. [DOI: 10.1021/acs.orglett.8b02112] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Saurabh Maity
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Debapratim Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Souradip Sarkar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Rajarshi Samanta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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32
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Anil Kumar K, Kannaboina P, Das P. Ruthenium-catalyzed site-selective C-H arylation of 2-pyridones and 1-isoquinolinones. Org Biomol Chem 2018. [PMID: 28621792 DOI: 10.1039/c7ob01277b] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient Ru(ii)-catalyzed site-selective C-H arylation of 2-pyridones and 1-isoquinolinones was achieved with boronic acids by using pyridine as a directing group. The developed protocol is general and provides rapid access to an array of C6-arylated 2-pyridones and C3-arylated 1-isoquinolinones in excellent yields. These designed arylated 2-pyridones and 1-isoquinolinones can serve as key structural motifs for accessing functionalized pyridines and isoquinolines.
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Affiliation(s)
- K Anil Kumar
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India.
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33
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Rauhamäki S, Postila PA, Niinivehmas S, Kortet S, Schildt E, Pasanen M, Manivannan E, Ahinko M, Koskimies P, Nyberg N, Huuskonen P, Multamäki E, Pasanen M, Juvonen RO, Raunio H, Huuskonen J, Pentikäinen OT. Structure-Activity Relationship Analysis of 3-Phenylcoumarin-Based Monoamine Oxidase B Inhibitors. Front Chem 2018; 6:41. [PMID: 29552556 PMCID: PMC5840146 DOI: 10.3389/fchem.2018.00041] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 02/14/2018] [Indexed: 11/17/2022] Open
Abstract
Monoamine oxidase B (MAO-B) catalyzes deamination of monoamines such as neurotransmitters dopamine and norepinephrine. Accordingly, small-molecule MAO-B inhibitors potentially alleviate the symptoms of dopamine-linked neuropathologies such as depression or Parkinson's disease. Coumarin with a functionalized 3-phenyl ring system is a promising scaffold for building potent MAO-B inhibitors. Here, a vast set of 3-phenylcoumarin derivatives was designed using virtual combinatorial chemistry or rationally de novo and synthesized using microwave chemistry. The derivatives inhibited the MAO-B at 100 nM−1 μM. The IC50 value of the most potent derivative 1 was 56 nM. A docking-based structure-activity relationship analysis summarizes the atom-level determinants of the MAO-B inhibition by the derivatives. Finally, the cross-reactivity of the derivatives was tested against monoamine oxidase A and a specific subset of enzymes linked to estradiol metabolism, known to have coumarin-based inhibitors. Overall, the results indicate that the 3-phenylcoumarins, especially derivative 1, present unique pharmacological features worth considering in future drug development.
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Affiliation(s)
- Sanna Rauhamäki
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Pekka A Postila
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Sanna Niinivehmas
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Sami Kortet
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland.,Department of Chemistry & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Emmi Schildt
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland.,Department of Chemistry & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Mira Pasanen
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Elangovan Manivannan
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland.,School of Pharmacy, Devi Ahilya University, Madhya Pradesh, India
| | - Mira Ahinko
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | | | - Niina Nyberg
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Pasi Huuskonen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Elina Multamäki
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Markku Pasanen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Risto O Juvonen
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Hannu Raunio
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Juhani Huuskonen
- Department of Chemistry & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Olli T Pentikäinen
- Computational Bioscience Laboratory, Department of Biological and Environmental Science & Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland.,MedChem.fi, Institute of Biomedicine, University of Turku, Turku, Finland
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34
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Gupta M, Kumar P, Bahadur V, Kumar K, Parmar VS, Singh BK. Metal-Free, Regioselective, Dehydrogenative Cross-Coupling between Formamides/Aldehydes and Coumarins by C-H Functionalization. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701764] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Mohit Gupta
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Prashant Kumar
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Vijay Bahadur
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Krishan Kumar
- Department of chemistry; University of Delhi; -110007 Delhi India
| | - Virinder S. Parmar
- Department of chemistry; University of Delhi; -110007 Delhi India
- Institute of Advanced Sciences; 86-410 Faunce Corner Mall Road 02747 Dartmouth MA USA
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35
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Hirano K, Miura M. A lesson for site-selective C-H functionalization on 2-pyridones: radical, organometallic, directing group and steric controls. Chem Sci 2018; 9:22-32. [PMID: 29629070 PMCID: PMC5875088 DOI: 10.1039/c7sc04509c] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 11/26/2017] [Indexed: 01/03/2023] Open
Abstract
A 2-pyridone ring is a frequently occurring subunit in natural products, biologically active compounds, and pharmaceutical targets. Thus, the selective synthesis of substituted 2-pyridone derivatives through decoration and/or formation of pyridone rings has been one of the important longstanding subjects in organic synthetic chemistry. This minireview focuses on recent advances in site-selective C-H functionalization on 2-pyridone. The reported procedures are categorized according to the site selectivity that is achieved, and the substrate scope, limitations, mechanism, and controlling factors are briefly summarized.
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Affiliation(s)
- Koji Hirano
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan . ;
| | - Masahiro Miura
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan . ;
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36
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Jana S, Samanta S, Bagdi AK, Shirinian VZ, Hajra A. Metal-free C–H arylation of imidazoheterocycles with aryl hydrazines. RSC Adv 2018; 8:12360-12367. [PMID: 35539413 PMCID: PMC9079221 DOI: 10.1039/c8ra01474d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 03/19/2018] [Indexed: 12/23/2022] Open
Abstract
Metal-free C–H arylation of imidazo[1,2-a]pyridines at C-3 position with arylhydrazines in presence of DBU has been developed at room temperature under ambient air.
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Affiliation(s)
- Sourav Jana
- Department of Chemistry
- Visva-Bharati (A Central University) Santiniketan
- India
| | - Sadhanendu Samanta
- Department of Chemistry
- Visva-Bharati (A Central University) Santiniketan
- India
| | - Avik K. Bagdi
- Department of Chemistry
- TDB College
- Burdwan 713347
- India
| | | | - Alakananda Hajra
- Department of Chemistry
- Visva-Bharati (A Central University) Santiniketan
- India
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37
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Gao F, Han X, Li C, Liu L, Cong Z, Liu H. Cobalt(iii)-catalyzed site-selective C–H amidation of pyridones and isoquinolones. RSC Adv 2018; 8:32659-32663. [PMID: 35547693 PMCID: PMC9086233 DOI: 10.1039/c8ra06716c] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 09/12/2018] [Indexed: 01/22/2023] Open
Abstract
In this study, Cp*Co(iii)-catalyzed site-selective amidation of pyridones and isoquinolones using oxazolones as the amidation reagent is reported.
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Affiliation(s)
- Feng Gao
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Xu Han
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Chunpu Li
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Lingjun Liu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Zhanqing Cong
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
| | - Hong Liu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai
- China
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38
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Kocaoğlu E, Karaman MA, Tokgöz H, Talaz O. Transition-Metal Catalyst Free Oxidative Radical Arylation of N-Methylpyrrole. ACS OMEGA 2017; 2:5000-5004. [PMID: 31457776 PMCID: PMC6641933 DOI: 10.1021/acsomega.7b00988] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 08/16/2017] [Indexed: 05/09/2023]
Abstract
This study represents an expansion of the application of catalysis in air through conventional coupling and free radical processes. A reactive free aryl radical intermediate was generated via the oxidation of an activated Ar-NH-NH2 bond by air as a simple and readily available oxidant. For this purpose, the usability of phenylhydrazine and phenylhydrazine hydrochloride salt reagents for the direct arylation of pyrrole with aryl radicals was investigated. The facile coupling of N-methylpyrrole with aryl radicals was easily applied for the convenient direct synthesis of C-2 arylated pyrroles without a transition-metal catalyst.
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39
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He ZY, Huang CF, Tian SK. Highly Regioselective Carbamoylation of Electron-Deficient Nitrogen Heteroarenes with Hydrazinecarboxamides. Org Lett 2017; 19:4850-4853. [DOI: 10.1021/acs.orglett.7b02312] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zeng-Yang He
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chao-Fan Huang
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shi-Kai Tian
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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40
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Hofmann J, Gans E, Clark T, Heinrich MR. Radical Arylation of Anilines and Pyrroles via Aryldiazotates. Chemistry 2017; 23:9647-9656. [PMID: 28440884 DOI: 10.1002/chem.201701429] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Indexed: 12/15/2022]
Abstract
The radical arylation of anilines and pyrroles can be achieved under transition-metal- and catalyst-free conditions by using aryldiazotates in strongly alkaline aqueous solutions. The aryldiazotates act as protected diazonium ions, which do not undergo azo coupling with electron-rich aromatic substrates, but can still serve as an aryl radical source at slightly elevated temperatures. Based on an improved preparation of aryldiazotates in aqueous solution, homolytic aromatic substitutions of anilines and pyrroles were conducted with good overall yields and high regioselectivity. Moreover, DFT calculations provided further mechanistic insights.
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Affiliation(s)
- Josefa Hofmann
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander Universität Erlangen-Nürnberg, Schuhstraße 19, 91052, Erlangen, Germany
| | - Eva Gans
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander Universität Erlangen-Nürnberg, Schuhstraße 19, 91052, Erlangen, Germany
| | - Timothy Clark
- Computer-Chemie-Centrum, Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstraße 25, 91052, Erlangen, Germany
| | - Markus R Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander Universität Erlangen-Nürnberg, Schuhstraße 19, 91052, Erlangen, Germany
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41
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Miura W, Hirano K, Miura M. Nickel-Catalyzed Directed C6-Selective C–H Alkylation of 2-Pyridones with Dienes and Activated Alkenes. J Org Chem 2017; 82:5337-5344. [DOI: 10.1021/acs.joc.7b00682] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wataru Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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42
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Chauhan P, Ravi M, Kant R, Yadav PP. Oxidative coupling of 1-(2-methyl-4-phenylquinolin-3-yl)ethanone with ethanol and unexpected deacetylative synthesis of 3-hydroxy quinoline. Org Biomol Chem 2017; 15:1080-1085. [PMID: 28067392 DOI: 10.1039/c6ob02336c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient one pot method for the synthesis of anti-α,β-epoxy ketones from 1-(2-methyl-4-phenylquinolin-3-yl)ethanone and ethanol has been developed by a modified Darzen reaction. The reaction occurs under oxidative conditions via a cascade sequence of bromination, aldol condensation followed by substitution. The reaction in the presence of NBS and a base however, in the absence of an oxidant, led to the formation of the corresponding 3-hydroxylated product via an unusual rearrangement.
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Affiliation(s)
- Parul Chauhan
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow-226031, India.
| | - Makthala Ravi
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow-226031, India.
| | - Ruchir Kant
- Division of Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow-226031, India
| | - Prem P Yadav
- Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow-226031, India.
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43
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Yuan JW, Li WJ, Xiao YM. KMnO4-mediated direct C2-selective C−H arylation of quinoline N-oxides with aromatic hydrazines. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.070] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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44
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Jafarpour F, Abbasnia M. A Regioselective Metal-Free Construction of 3-Aroyl Coumarins by Csp2-H Functionalization. J Org Chem 2016; 81:11982-11986. [DOI: 10.1021/acs.joc.6b02051] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Farnaz Jafarpour
- School
of Chemistry, College
of Science, University of Tehran, Tehran 1417466191, Iran
| | - Masoumeh Abbasnia
- School
of Chemistry, College
of Science, University of Tehran, Tehran 1417466191, Iran
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45
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Peng P, Wang J, Jiang H, Liu H. Rhodium(III)-Catalyzed Site-Selective C-H Alkylation and Arylation of Pyridones Using Organoboron Reagents. Org Lett 2016; 18:5376-5379. [PMID: 27736078 DOI: 10.1021/acs.orglett.6b02755] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this study we developed a method for the pyridine-directed, rhodium-catalyzed, site-selective C-H alkylation and arylation of pyridones using commercially available trifluoroborate reagents. This simple and versatile transformation proceeded smoothly under relatively mild conditions with perfect site selectivity. The coupling groups in the boron reagents can be extended to primary alkyl, benzyl, and cycloalkyl. Moreover, direct C-H arylation products could also be obtained under similar conditions.
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Affiliation(s)
- Panfeng Peng
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China.,School of Pharmaceutical Engineering, Shenyang Pharmaceutical University , 103 Wen Hua Road, Liaoning, Shenyang 110016, China
| | - Jiang Wang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
| | - Hualiang Jiang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China.,School of Pharmaceutical Engineering, Shenyang Pharmaceutical University , 103 Wen Hua Road, Liaoning, Shenyang 110016, China
| | - Hong Liu
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
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46
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Yuan JW, Li WJ, Yang LR, Mao P, Xiao YM. Regioselective C-3 arylation of coumarins with arylhydrazines via radical oxidation by potassium permanganate. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/znb-2016-0109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
An efficient protocol for oxidative C-3 arylation of coumarins with arylhydrazine has been developed using potassium permanganate as an oxidant. The arylated coumarins with different electronic properties were obtained in moderate to good yields. The developed protocol for direct C-3 arylation of coumarins could be extended to quinolinones.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry and Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medical Chemistry of Henan Province, Zhengzhou 450001, P.R. China
| | - Wei-Jie Li
- School of Chemistry and Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medical Chemistry of Henan Province, Zhengzhou 450001, P.R. China
| | - Liang-Ru Yang
- School of Chemistry and Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medical Chemistry of Henan Province, Zhengzhou 450001, P.R. China
| | - Pu Mao
- School of Chemistry and Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medical Chemistry of Henan Province, Zhengzhou 450001, P.R. China
| | - Yong-Mei Xiao
- School of Chemistry and Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medical Chemistry of Henan Province, Zhengzhou 450001, P.R. China
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47
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Miura W, Hirano K, Miura M. Rhodium-Catalyzed C6-Selective C–H Borylation of 2-Pyridones. Org Lett 2016; 18:3742-5. [DOI: 10.1021/acs.orglett.6b01762] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Wataru Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry,
Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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48
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Guo S, Gong J, Zhu Z, Yu L, Wang Y, Huang L, Cai H. Copper-catalyzed Phosphorylation of Coumarins with Trialkyl Phosphites. CHEM LETT 2016. [DOI: 10.1246/cl.160305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Yuan JW, Yang LR, Yin QY, Mao P, Qu LB. KMnO4/AcOH-mediated C3-selective direct arylation of coumarins with arylboronic acids. RSC Adv 2016. [DOI: 10.1039/c6ra04787d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
An efficient protocol for KMnO4/AcOH-mediated C3-direct radical arylation of coumarins with arylboronic acids to afford 3-arylcoumarin derivatives is described.
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Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P.R. China
| | - Liang-Ru Yang
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P.R. China
| | - Qiu-Yue Yin
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P.R. China
| | - Pu Mao
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P.R. China
| | - Ling-Bo Qu
- School of Chemistry & Chemical Engineering
- Henan University of Technology
- Zhengzhou 450001
- P.R. China
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