1
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Hao MY, Zhang Y, Lin N, Fu R, Ji XS, Jiang B, Tu SJ, Hao WJ. Gold self-relay catalysis enabling annulative oxygenation of propargylic alcohols with O-nucleophiles. Chem Commun (Camb) 2023; 59:4032-4035. [PMID: 36924136 DOI: 10.1039/d3cc00089c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
A new gold(I) self-relay catalysis reaction enabling the annulative oxygenation of propargylic alcohols with various O-nucleophiles, such as carboxylic acids, alcohols and TBHP, is reported, producing a series of functionalized benzofurans in moderate to good yields under mild conditions. This protocol benefits from the π- and σ-Lewis acid capability of gold complexes, demonstrating high molecular convergence, broad substrate flexibility, high functional group compatibility and mild conditions.
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Affiliation(s)
- Meng-Ying Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China. .,School of Pharmacy, Zhengzhou Vocational College of Medicine and Health, Zhengzhou 452385, P. R. China
| | - Yin Zhang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Na Lin
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Rong Fu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Xiao-Shuang Ji
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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2
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Nakamura A, Imamiya A, Ikegami Y, Rao F, Yuguchi H, Miki Y, Maegawa T. Selective synthesis of 3-formylbenzofuran and 3-acylbenzofuran using a chalcone rearrangement strategy. RSC Adv 2022; 12:30426-30431. [PMID: 36337936 PMCID: PMC9593264 DOI: 10.1039/d2ra06080a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/13/2022] [Indexed: 12/01/2022] Open
Abstract
We developed a method for highly selective synthesis of two benzofuran isomers, by rearranging and subsequently transforming 2-hydroxychalcones. Depending on the reaction conditions, synthesis of 3-formylbenzofurans, unconventional products, and 3-acylbenzofurans was achieved through cyclized 2,3-dihydrobenzofurans obtained from the rearranged products. The facile synthesis of 3-formylbenzofurans facilitated synthesis of the natural product, puerariafuran, from the corresponding chalcone.
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Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Akira Imamiya
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Yuichiro Ikegami
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Fei Rao
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Harumi Yuguchi
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Yasuyoshi Miki
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences, Kindai University 3-4-1 Kowakae Higashi-osaka Osaka 577-8502 Japan
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3
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Ji XS, Zuo HD, Shen YT, Hao WJ, Tu SJ, Jiang B. Electrochemical selective annulative amino-ketalization and amino-oxygenation of 1,6-enynes. Chem Commun (Camb) 2022; 58:10420-10423. [PMID: 36043317 DOI: 10.1039/d2cc03922b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new electrochemical selective annulative amino-ketalization and amino-oxygenation of 1,6-enynes with disulfonimides and alcohols is reported, producing a series of functionalized benzofurans under catalyst- and oxidant-free conditions. The annulative aminoketalization proceeds with simple short-chain alcohols such as methanol, ethanol and n-propanol as O-nucleophilic reagents, while the reaction occurs in the annulative aminooxygenation direction in the presence of water and large steric sec-butyl alcohol (SBA).
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Affiliation(s)
- Xiao-Shuang Ji
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Hang-Dong Zuo
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China. .,School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, P. R. China
| | - Yi-Ting Shen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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4
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Chen S, Li M, Gu Y. Acid-catalyzed cleavage of C-C bonds enables atropaldehyde acetals as masked C2 electrophiles for organic synthesis. Chem Commun (Camb) 2021; 57:10431-10434. [PMID: 34549750 DOI: 10.1039/d1cc04000f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Acid-catalyzed tandem reactions of atropaldehyde acetals were established for the synthesis of three important molecules, 2,2-disubstituted indolin-3-ones, naphthofurans and stilbenes. The synthesis was realized using novel reaction cascades, which involved the same two initial steps: (i) SN2' substitution, in which the atropaldehyde acted as an electrophile; and (ii) oxidative cleavage of the carbon-carbon bond of the generated phenylacetaldehyde-type products. Compared with literature methods, the present protocol not only avoided the use of expensive noble metal catalysts, but also enabled a simple operation.
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Affiliation(s)
- Shaomin Chen
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
| | - Minghao Li
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
| | - Yanlong Gu
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China. .,School of Chemistry and Chemical Engineering, The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, 730000, Lanzhou, China
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5
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Medishetti N, Ittamalla C, Kale A, Nanubolu JB, Atmakur K. Base‐Promoted Synthetic Transformation of 4
H
‐Chromenes into Dihydrobenzofurans and Bispyrazolospirocyclopropanes via Intramolecular Cyclization. ChemistrySelect 2021. [DOI: 10.1002/slct.202102655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nagaraju Medishetti
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad 500 007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Chaitanya Ittamalla
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad 500 007 India
| | - Ashok Kale
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad 500 007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Jagadeesh Babu Nanubolu
- Laboratory of X-ray Crystallography CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad 500 007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
| | - Krishnaiah Atmakur
- Fluoro & Agrochemicals Department CSIR-Indian Institute of Chemical Technology, Tarnaka Hyderabad 500 007 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
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6
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Annatelli M, Trapasso G, Salaris C, Salata C, Castellano S, Aricò F. Mustard Carbonate Analogues as Sustainable Reagents for the Aminoalkylation of Phenols. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mattia Annatelli
- Department of Environmental Sciences Informatics and Statistics Ca' Foscari University Campus Scientifico, Via Torino 155 30172 Venezia Mestre Italy
| | - Giacomo Trapasso
- Department of Environmental Sciences Informatics and Statistics Ca' Foscari University Campus Scientifico, Via Torino 155 30172 Venezia Mestre Italy
| | - Claudio Salaris
- Department of Molecular Medicine Padua University via Gabelli 63 35121 Padova Italy
| | - Cristiano Salata
- Department of Molecular Medicine Padua University via Gabelli 63 35121 Padova Italy
| | - Sabrina Castellano
- Department of Pharmacy University of Salerno Via Giovanni Paolo II, 132 84084 Fisciano, Salerno Italy
| | - Fabio Aricò
- Department of Environmental Sciences Informatics and Statistics Ca' Foscari University Campus Scientifico, Via Torino 155 30172 Venezia Mestre Italy
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7
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Liou YC, Wang HW, Edukondalu A, Lin W. Phosphine-Catalyzed Chemoselective Reduction/Elimination/Wittig Sequence for Synthesis of Functionalized 3-Alkenyl Benzofurans. Org Lett 2021; 23:3064-3069. [PMID: 33821660 DOI: 10.1021/acs.orglett.1c00737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An efficient protocol for the construction of functionalized 3-alkenyl benzofurans is demonstrated under metal-free conditions using catalytic amount of phosphine proceeding an intramolecular Wittig reaction. This one-pot reaction initiated by the phospha-Michael addition of phosphine to O-acylated nitrostyrene, in which phosphine was in-situ-generated from the chemoselective reduction of phosphine oxide with PhSiH3, would provide the phosphorus ylide to result in the aforementioned multifunctionalized benzofuran via O-acylation/nitrous acid elimination/Wittig reaction.
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Affiliation(s)
- Yan-Cheng Liou
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Heng-Wei Wang
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Athukuri Edukondalu
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
| | - Wenwei Lin
- Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingchow Road, Taipei 11677, Taiwan, Republic of China
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8
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Pelipko VV, Baichurin RI, Kondrashov EV, Makarenko SV. Optimization of the Synthesis of Benzo[b]furan-3-carboxylates Based on Alkyl 3-Bromo-3-nitroacrylates. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221020031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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9
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Baf MMF, Akhlaghinia B, Zarei Z, Ghodsinia SSE. Ecofriendly and Facile One‐Pot Multicomponent Synthesis of 5‐Phenyl‐5,10‐dihydropyrido[2,3‐d : 6,5‐d′]dipyrimidine‐2,4,6,8(1
H
,3
H
,7
H
,9
H
)‐tetraone Derivatives Catalyzed by Cu
II
Immobilized on Functionalized Magnetic Mesoporous MCM‐41 (Fe
3
O
4
@MCM‐41‐GPTMS‐Gu‐Cu
II
). ChemistrySelect 2020. [DOI: 10.1002/slct.202004112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Batool Akhlaghinia
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad 9177948974 Iran
| | - Zeinab Zarei
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad 9177948974 Iran
| | - Sara S. E. Ghodsinia
- Department of Chemistry Faculty of Science Ferdowsi University of Mashhad Mashhad 9177948974 Iran
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10
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Gui QW, Teng F, Ying SN, Liu Y, Guo T, Tang JX, Chen JY, Cao Z, He WM. Ultrasound-assisted tandem synthesis of tri- and tetra-substituted pyrrole-2-carbonitriles from alkenes, TMSCN and N,N-disubstituted formamides. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Chen S, Bai R, Li M, Liu P, Gu Y. Acid‐Acid‐Catalyzed Tandem Reactions Driven by an Additive‐Like Component. CHEM REC 2020. [DOI: 10.1002/tcr.202000097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shaomin Chen
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832004 P.R. China
| | - Rongxian Bai
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
| | - Minghao Li
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
| | - Ping Liu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Shihezi 832004 P.R. China
| | - Yanlong Gu
- Key Laboratory for Large-Format Battery Materials and System Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P.R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical Physics Lanzhou 730000 P.R. China
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12
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Wei Y, He J, Liu Y, Xu L, Vaccaro L, Liu P, Gu Y. Sulfenylation of Arenes with Ethyl Arylsulfinates in Water. ACS OMEGA 2020; 5:18515-18526. [PMID: 32743230 PMCID: PMC7392521 DOI: 10.1021/acsomega.0c02590] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
A tetrabutylammonium iodide-mediated direct sulfenylation of arenes with ethyl arylsulfinates in water was developed. Various electron-rich arenes and ethyl arylsulfinates were investigated in the reaction, and a series of aryl sulfides were obtained in excellent yields. The advantages of this green protocol were simple reaction conditions (metal-free, water as the solvent, and under air), odorless and easily available sulfur reagent, broad substrate scope, and gram-scale synthesis. Moreover, the potential application of aryl sulfides was exemplified by further transformations.
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Affiliation(s)
- Yueting Wei
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Jing He
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Yali Liu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Liang Xu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Luigi Vaccaro
- Laboratory
of Green S. O. C., Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Ping Liu
- School
of Chemistry and Chemical Engineering, The Key Laboratory for Green
Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832004, China
| | - Yanlong Gu
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, Hubei Key Laboratory of Material Chemistry
and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, 1037 Luoyu Road, Hongshan District, Wuhan 430074, China
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13
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Li W, Zhang J, He J, Xu L, Vaccaro L, Liu P, Gu Y. I 2/DMSO-Catalyzed Transformation of N-tosylhydrazones to 1,2,3-thiadiazoles. Front Chem 2020; 8:466. [PMID: 32596205 PMCID: PMC7304252 DOI: 10.3389/fchem.2020.00466] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/04/2020] [Indexed: 12/05/2022] Open
Abstract
An iodine/DMSO catalyzed selective cyclization of N-tosylhydrazones with sulfur without adding external oxidant was developed for the synthesis of 4-aryl-1,2,3-thiadiazoles. In this reaction, oxidation of HI by using DMSO as dual oxidant and solvent is the key, which allowed the regeneration of I2, ensuring thus the success of the synthesis. This protocol features by simple operation, high step-economy (one-pot fashion), broad substrate scope as well as scale-up ability.
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Affiliation(s)
- Weiwei Li
- The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Jun Zhang
- The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Jing He
- The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Liang Xu
- The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Luigi Vaccaro
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Perugia, Italy
| | - Ping Liu
- The Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Yanlong Gu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
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14
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Jones NS, Comparin JH. Interpol review of controlled substances 2016-2019. Forensic Sci Int Synerg 2020; 2:608-669. [PMID: 33385148 PMCID: PMC7770462 DOI: 10.1016/j.fsisyn.2020.01.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 01/23/2020] [Indexed: 12/14/2022]
Abstract
This review paper covers the forensic-relevant literature in controlled substances from 2016 to 2019 as a part of the 19th Interpol International Forensic Science Managers Symposium. The review papers are also available at the Interpol website at: https://www.interpol.int/content/download/14458/file/Interpol%20Review%20Papers%202019.pdf.
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Affiliation(s)
- Nicole S. Jones
- RTI International, Applied Justice Research Division, Center for Forensic Sciences, 3040 E. Cornwallis Road, Research Triangle Park, NC, 22709-2194, USA
| | - Jeffrey H. Comparin
- United States Drug Enforcement Administration, Special Testing and Research Laboratory, USA
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15
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Chiummiento L, D’Orsi R, Funicello M, Lupattelli P. Last Decade of Unconventional Methodologies for the Synthesis of Substituted Benzofurans. Molecules 2020; 25:E2327. [PMID: 32429435 PMCID: PMC7288127 DOI: 10.3390/molecules25102327] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
This review describes the progress of the last decade on the synthesis of substituted benzofurans, which are useful scaffolds for the synthesis of numerous natural products and pharmaceuticals. In particular, new intramolecular and intermolecular C-C and/or C-O bond-forming processes, with transition-metal catalysis or metal-free are summarized. (1) Introduction. (2) Ring generation via intramolecular cyclization. (2.1) C7a-O bond formation: (route a). (2.2) O-C2 bond formation: (route b). (2.3) C2-C3 bond formation: (route c). (2.4) C3-C3a bond formation: (route d). (3) Ring generation via intermolecular cyclization. (3.1) C7a-O and C3-C3a bond formation (route a + d). (3.2) O-C2 and C2-C3 bond formation: (route b + c). (3.3) O-C2 and C3-C3a bond formation: (route b + d). (4) Benzannulation. (5) Conclusion.
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Affiliation(s)
- Lucia Chiummiento
- Department of Science, Via dell’Ateneo Lucano, 10, 85100 Potenza, Italy; (R.D.); (M.F.); (P.L.)
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16
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Oschmann M, Johansson Holm L, Pourghasemi-Lati M, Verho O. Synthesis of Elaborate Benzofuran-2-carboxamide Derivatives through a Combination of 8-Aminoquinoline Directed C-H Arylation and Transamidation Chemistry. Molecules 2020; 25:E361. [PMID: 31952313 PMCID: PMC7024369 DOI: 10.3390/molecules25020361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 12/20/2022] Open
Abstract
Herein, we present a short and highly modular synthetic route that involves 8-aminoquinoline directed C-H arylation and transamidation chemistry, and which enables access to a wide range of elaborate benzofuran-2-carboxamides. For the directed C-H arylation reactions, Pd catalysis was used to install a wide range of aryl and heteroaryl substituents at the C3 position of the benzofuran scaffold in high efficiency. Directing group cleavage and further diversification of the C3-arylated benzofuran products were then achieved in a single synthetic operation through the utilization of a one-pot, two-step transamidation procedure, which proceeded via the intermediate N-acyl-Boc-carbamates. Given the high efficiency and modularity of this synthetic strategy, it constitutes a very attractive method for generating structurally diverse collections of benzofuran derivatives for small molecule screening campaigns.
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Affiliation(s)
| | | | | | - Oscar Verho
- Arrhenius Laboratory, Department of Organic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden; (M.O.); (L.J.H.); (M.P.-L.)
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17
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Kaur N, Ahlawat N, Verma Y, Grewal P, Bhardwaj P, Jangid NK. Metal and organo-complex promoted synthesis of fused five-memberedO-heterocycles. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1700522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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18
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Iqbal N, Iqbal N, Maiti D, Cho EJ. Access to Multifunctionalized Benzofurans by Aryl Nickelation of Alkynes: Efficient Synthesis of the Anti‐Arrhythmic Drug Amiodarone. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Naila Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
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19
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Iqbal N, Iqbal N, Maiti D, Cho EJ. Access to Multifunctionalized Benzofurans by Aryl Nickelation of Alkynes: Efficient Synthesis of the Anti‐Arrhythmic Drug Amiodarone. Angew Chem Int Ed Engl 2019; 58:15808-15812. [DOI: 10.1002/anie.201909015] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/12/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Naeem Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Naila Iqbal
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Eun Jin Cho
- Department of Chemistry Chung-Ang University 84 Heukseok-ro Dongjak-gu Seoul 06974 Republic of Korea
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20
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Schultze C, Schmidt B. Functionalized Benzofurans via Microwave‐Promoted Tandem Claisen‐Rearrangement/5‐
endo
‐dig Cyclization. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christiane Schultze
- Universitaet Potsdam, Institut fuer Chemie Karl‐Liebknecht‐Straße 24‐25 Potsdam‐Golm D‐14476 Germany
| | - Bernd Schmidt
- Universitaet Potsdam, Institut fuer Chemie Karl‐Liebknecht‐Straße 24‐25 Potsdam‐Golm D‐14476 Germany
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21
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Litvinova VA, Tikhomirov AS. Methods for the synthesis of benzofuran-3-carboxylate esters (microreview). Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02520-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Khan F, Fatima M, Shirzaei M, Vo Y, Amarasiri M, Banwell MG, Ma C, Ward JS, Gardiner MG. Tandem Ullmann-Goldberg Cross-Coupling/Cyclopalladation-Reductive Elimination Reactions and Related Sequences Leading to Polyfunctionalized Benzofurans, Indoles, and Phthalanes. Org Lett 2019; 21:6342-6346. [PMID: 31364356 DOI: 10.1021/acs.orglett.9b02235] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
On exposure to a combination of Cu[I]- and Pd[0]-based catalysts, compounds such as 1 and 7 engage in tandem Ullmann-Goldberg cross-coupling and cyclopalladation-reductive elimination reactions to give benzofurans such as 8. Related reactions involving hetero-Michael additions of o-halogenated phenols or anilines to propiolates and the Pd[0]-catalyzed cyclization of the resulting conjugates provide, in a one-pot process, alternately functionalized benzofurans, indoles, or phthalanes.
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Affiliation(s)
- Faiyaz Khan
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Mehvish Fatima
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Moheb Shirzaei
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Yen Vo
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Madushani Amarasiri
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Martin G Banwell
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Chenxi Ma
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Jas S Ward
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Michael G Gardiner
- Research School of Chemistry, Institute of Advanced Studies , The Australian National University , Canberra , Australian Capital Territory 2601 , Australia
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23
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El‐Harairy A, Yiliqi, Yue M, Fan W, Popowycz F, Queneau Y, Li M, Gu Y. Novel Non‐toxic and Non‐hazardous Solvent Systems for the Chemistry of Indoles: Use of a Sulfone‐containing Brønsted Acid Ionic Liquid Catalyst in Butyl Acetate. ChemCatChem 2019. [DOI: 10.1002/cctc.201900784] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ahmed El‐Harairy
- Key Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology
| | - Yiliqi
- Key Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology
| | - Meie Yue
- Qingdao University of Science and Technology 266042 Qingdao China
| | - Weigang Fan
- Institut de Chimie et Biochimie Moléculaires et SupramoléculairesUniv Lyon, CNRS, Université Lyon 1, INSA Lyon, CPE Lyon, ICBMSUMR 5246Université Claude BernardBâtiment Lederer 1 Rue Victor Grignard 69622 Villeurbanne Cedex France
| | - Florence Popowycz
- Institut de Chimie et Biochimie Moléculaires et SupramoléculairesUniv Lyon, CNRS, Université Lyon 1, INSA Lyon, CPE Lyon, ICBMSUMR 5246Université Claude BernardBâtiment Lederer 1 Rue Victor Grignard 69622 Villeurbanne Cedex France
| | - Yves Queneau
- Institut de Chimie et Biochimie Moléculaires et SupramoléculairesUniv Lyon, CNRS, Université Lyon 1, INSA Lyon, CPE Lyon, ICBMSUMR 5246Université Claude BernardBâtiment Lederer 1 Rue Victor Grignard 69622 Villeurbanne Cedex France
| | - Minghao Li
- Key Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology
| | - Yanlong Gu
- Key Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationHubei Key Laboratory of Material Chemistry and Service FailureSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology
- State Key Laboratory for Oxo Synthesis and Selective OxidationLanzhou Institute of Chemical Physics Lanzhou 730000 China
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24
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Development of Titanium Dioxide-Supported Pd Catalysts for Ligand-Free Suzuki–Miyaura Coupling of Aryl Chlorides. Catalysts 2019. [DOI: 10.3390/catal9050461] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The catalyst activities of various heterogeneous palladium catalysts supported by anatase-, rutile- and brookite-type titanium oxide for ligand-free Suzuki–Miyaura cross-coupling reactions of aryl chlorides were evaluated. Palladium acetate [Pd(OAc)2], supported on anatase-type titanium oxide (TiO2) via acetonitrile solution impregnation process without reduction [Pd/TiO2 (anatase-type)], demonstrated the highest catalyst activity in comparison to those of other titanium oxide (rutile- or brookite-type) supported Pd(OAc)2 without reduction and reduced Pd/TiO2 (anatase-type) [Pd(red)/TiO2 (anatase-type)]. Various aryl chloride and bromide derivatives were smoothly coupled with arylboronic acids including heteroarylboronic acids in the presence of 5–10 mol% Pd/TiO2 (anatase-type) without the addition of any ligands. Although the fresh Pd/TiO2 (anatase-type) catalyst was surprisingly comprised of ca. 1:2 mixture of palladium(II) and palladium(0) species according to X-ray photoelectron spectroscopy (XPS), in spite of no reduction process, significant further increment of palladium(0) species was observed during the Suzuki–Miyaura coupling reaction, and Pd/TiO2 (anatase-type) was converted into a catalyst, which contained palladium(0) species as the main component [ca. 1:5 mixture of palladium(II) and palladium(0) species]. Therefore, the reduction via the electron donation process to the palladium(II) species may have occurred during the reaction on anatase-type titanium oxide.
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25
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Huang W, Chen S, Chen Z, Yue M, Li M, Gu Y. Synthesis of Multisubstituted Pyrroles from Enolizable Aldehydes and Primary Amines Promoted by Iodine. J Org Chem 2019; 84:5655-5666. [DOI: 10.1021/acs.joc.9b00596] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wenbo Huang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Shaomin Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Zhiyan Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Meie Yue
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042 Qingdao, China
| | - Minghao Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Yanlong Gu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Huazhong University of Science and Technology, 430074 Wuhan, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, 730000 Lanzhou, China
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26
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Chen S, Ravichandiran P, El-Harairy A, Queneau Y, Li M, Gu Y. 4-Aminoindoles as 1,4-bisnucleophiles for diversity-oriented synthesis of tricyclic indoles bearing 3,4-fused seven-membered rings. Org Biomol Chem 2019; 17:5982-5989. [DOI: 10.1039/c9ob01045a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A straightforward access to tricyclic indoles bearing 3,4-fused seven-membered rings was established by using 4-aminoindoles as 1,4-bisnucleophiles in three-component reactions.
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Affiliation(s)
- Shaomin Chen
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan
| | - Palanisamy Ravichandiran
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan
| | - Ahmed El-Harairy
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan
| | - Yves Queneau
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
- Univ Lyon
- CNRS
- Université Lyon 1
- INSA Lyon
| | - Minghao Li
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan
| | - Yanlong Gu
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan
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