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Tiwari MK, Iqubal A, Das P. Intramolecular oxidative C–N bond formation under metal-free conditions: One-pot global functionalization of pyrazole ring. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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2
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Kusaka S, Ohmura T, Suginome M. Iridium-Catalyzed Enantioselective Intramolecular Cross-Dehydrogenative Coupling of Alkyl Aryl Ethers Giving Enantioenriched 2,3-Dihydrobenzofurans. CHEM LETT 2022. [DOI: 10.1246/cl.220129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Satoshi Kusaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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3
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Zhao J, Song X, Li D, Zhao J, Qu J, Zhou Y. Intramolecular Dehydrogenative Coupling Approach to 2‐Oxindoles Using Fe(OAc)
2
/NaI/Na
2
S
2
O
8. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Junyan Zhao
- State Key Laboratory of Fine Chemicals Department of Pharmaceutical Sciences School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
| | - Xun Song
- State Key Laboratory of Fine Chemicals Department of Pharmaceutical Sciences School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
| | - Dong Li
- State Key Laboratory of Fine Chemicals Department of Pharmaceutical Sciences School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
| | - Jinfeng Zhao
- State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
| | - Yuhan Zhou
- State Key Laboratory of Fine Chemicals Department of Pharmaceutical Sciences School of Chemical Engineering Dalian University of Technology 116024 Dalian P.R. China
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4
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Donald JR, Taylor RJK, Petersen WF. Low-Temperature, Transition-Metal-Free Cross-Dehydrogenative Coupling Protocol for the Synthesis of 3,3-Disubstituted Oxindoles. J Org Chem 2017; 82:11288-11294. [PMID: 28926705 DOI: 10.1021/acs.joc.7b02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new low-temperature procedure for the synthesis of 3,3-disubstituted 2-oxindoles via cross-dehydrogenative coupling (CDC) is reported. The use of a strong, nonreversible base in these reactions has been found to effect a dramatic drop in reaction temperature (to room temperature) relative to the current state-of-the-art (>100 °C) procedure. When employing iodine as an "oxidant", new evidence suggests that this transformation may occur via a transiently stable iodinated intermediate rather than by direct single-electron oxidation.
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Affiliation(s)
- James R Donald
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Richard J K Taylor
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Wade F Petersen
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
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5
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Yi H, Zhang G, Wang H, Huang Z, Wang J, Singh AK, Lei A. Recent Advances in Radical C-H Activation/Radical Cross-Coupling. Chem Rev 2017. [PMID: 28639787 DOI: 10.1021/acs.chemrev.6b00620] [Citation(s) in RCA: 876] [Impact Index Per Article: 109.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Research and industrial interest in radical C-H activation/radical cross-coupling chemistry has continuously grown over the past few decades. These reactions offer fascinating and unconventional approaches toward connecting molecular fragments with high atom- and step-economy that are often complementary to traditional methods. Success in this area of research was made possible through the development of photocatalysis and first-row transition metal catalysis along with the use of peroxides as radical initiators. This Review provides a brief and concise overview of the current status and latest methodologies using radicals or radical cations as key intermediates produced via radical C-H activation. This Review includes radical addition, radical cascade cyclization, radical/radical cross-coupling, coupling of radicals with M-R groups, and coupling of radical cations with nucleophiles (Nu).
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Affiliation(s)
- Hong Yi
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Guoting Zhang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Zhiyuan Huang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Jue Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Atul K Singh
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang 330022, China
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6
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Li JS, Da YD, Chen GQ, Yang Q, Li ZW, Yang F, Huang PM. Solvent-, and Catalyst-free Acylation of Anilines with Meldrum's Acids: ANeat Access to Anilides. ChemistrySelect 2017. [DOI: 10.1002/slct.201601965] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiang-Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Yu-Dong Da
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Guo-Qin Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Qian Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Zhi-Wei Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Fan Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
| | - Peng-Mian Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation; School of Chemistry and Biological Engineering; Changsha University of Science & Technology; Changsha 410114 People's Republic of China
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Chen K, Gao B, Shang Y, Du J, Gu Q, Wang J. I2-Catalyzed cross dehydrogenative coupling: rapid access to benzoxazinones and quinazolinones. Org Biomol Chem 2017; 15:8770-8779. [DOI: 10.1039/c7ob02038d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and applicable I2-catalyzed intramolecular dehydrogenative C–O/C–N coupling reaction has been developed for the first time to provide both benzoxazinones and quinazolinones.
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Affiliation(s)
- Kaili Chen
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Biao Gao
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Yanguo Shang
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Jianyao Du
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Qinlan Gu
- Senior Vocational School
- China Pharmaceutical University
- Nanjing 211198
- P. R. China
| | - Jinxin Wang
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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Mondal B, Roy B. Isopropanol and potassium tert-butoxide promoted intramolecular direct sp2 C–H functionalization: an expedient synthesis of 1,2,3-triazole annulated chromens and quinolones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.096] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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