1
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Li ZQ, Tang HJ, Wang Z, Wang CQ, Feng C. Multi-substituted trifluoromethyl alkene construction via gold-catalyzed fluoroarylation of gem-difluoroallenes. Chem Sci 2024; 15:3524-3529. [PMID: 38454999 PMCID: PMC10915851 DOI: 10.1039/d3sc06060h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/23/2024] [Indexed: 03/09/2024] Open
Abstract
An unprecedented fluoroarylation of 1,1-difluoroallenes with a cost-effective nucleophilic fluoride reagent and aryldiazonium salts is reported. This visible light promoted gold-catalyzed reaction allows a stereo- and regioselective incorporation of both the fluorine atom and aryl group, enabling a straightforward construction of multi-substituted trifluoromethyl alkenes. Under the mild reaction conditions, a nice tolerance of diverse functional groups is achieved. The high regioselectivity for fluorine-incorporation is rationalized by considering the thermodynamic driving force of trifluoromethyl group formation, whereas the counterintuitive stereoselectivity that aryl is installed on the side of the bulkier γ-substituent is interpreted by alleviating the increasing 1,3-allylic interaction in the gold-coordinated allene intermediate en route to the product.
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Affiliation(s)
- Zhi-Qiang Li
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Hai-Jun Tang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Zaixin Wang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Cheng-Qiang Wang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
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2
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Sansores-Paredes MG, Wendel M, Lutz M, Moret ME. Reactivity of Nickel Complexes Bearing P(C=X)P Ligands (X = O, N) Toward Diazoalkanes: Evidence for Phosphorus Ylide Intermediates. Organometallics 2024; 43:506-514. [PMID: 38425383 PMCID: PMC10900526 DOI: 10.1021/acs.organomet.3c00437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 03/02/2024]
Abstract
Nickel carbenes are attracting attention for the development of more sustainable catalysts, among others, for cyclopropanation. Intramolecular trapping of a nickel carbene intermediate with an olefin incorporated in a P(C=C)P Ni pincer complex had previously allowed the isolation of a nickelacyclobutane intermediate and a detailed characterization of its reactivity. Herein, we report the reactivity of related nickel pincer complexes bearing a ketone P(C=O)P or an imine P(C=N)P with diazoalkanes as the carbene precursor. The observed reactivity suggests, in both cases, the reaction of the transient nickel carbene with one of the phosphine arms to form phosphorus ylides that subsequently react with the unsaturated backbone. Density functional theory (DFT) calculations are used to shed light on the mechanisms of these reactions.
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Affiliation(s)
- María
L. G. Sansores-Paredes
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Max Wendel
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Martin Lutz
- Structural
Biochemistry, Bijvoet Centre for Biomolecular Research, Faculty of
Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Marc-Etienne Moret
- Organic
Chemistry and Catalysis, Institute for Sustainable and Circular Chemistry,
Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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3
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Baumann JE, Chung CP, Lalic G. Stereoselective Copper-Catalyzed Olefination of Imines. Angew Chem Int Ed Engl 2024; 63:e202316521. [PMID: 38100274 PMCID: PMC10977923 DOI: 10.1002/anie.202316521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/10/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Alkenes are an important class of organic molecules found among synthetic intermediates and bioactive compounds. They are commonly synthesized through stoichiometric Wittig-type olefination of carbonyls and imines, using ylides or their equivalents. Despite the importance of Wittig-type olefination reactions, their catalytic variants remain underdeveloped. We explored the use of transition metal catalysis to form ylide equivalents from readily available starting materials. Our investigation led to a new copper-catalyzed olefination of imines with alkenyl boronate esters as coupling partners. We identified a heterobimetallic complex, obtained by hydrocupration of the alkenyl boronate esters, as the key catalytic intermediate that serves as an ylide equivalent. The high E-selectivity observed in the reaction is due to the stereoselective addition of this intermediate to an imine, followed by stereospecific anti-elimination.
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Affiliation(s)
- James E Baumann
- Department of Chemistry, University of Washington, 109 Bagley Hall, 98195, Seattle, WA, USA
| | - Crystal P Chung
- Department of Chemistry, University of Washington, 109 Bagley Hall, 98195, Seattle, WA, USA
| | - Gojko Lalic
- Department of Chemistry, University of Washington, 109 Bagley Hall, 98195, Seattle, WA, USA
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4
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Wang G, Zhou R, Peng SH, Chen XK, Zou HB. Iron(II) Phthalocyanine-Catalyzed Olefination of Aldehydes with Diazoacetonitrile: A Novel Approach to Construct Alkenyl Nitriles. ACS OMEGA 2024; 9:3317-3323. [PMID: 38284005 PMCID: PMC10809703 DOI: 10.1021/acsomega.3c06029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/27/2023] [Accepted: 12/13/2023] [Indexed: 01/30/2024]
Abstract
A novel synthetic approach to preparing alkenyl nitriles via the olefination of aldehydes with diazoacetonitrile catalyzed by iron(II) phthalocyanine in the presence of PPh3 has been developed. A broad variety of aldehydes are efficiently transformed into the corresponding products with the high yields of 75%-97%. And it is also suitable for its gram-scale preparation. The suggested mechanism involves the transformation of the phosphazine to ylide by iron(II) phthalocyanine.
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Affiliation(s)
- Gang Wang
- Department of Chemistry &
Bioengineering, Key Laboratory of Jiangxi University for Applied Chemistry
& Chemical Biology, Yichun University, Yichun 336000, China
| | - Rong Zhou
- Department of Chemistry &
Bioengineering, Key Laboratory of Jiangxi University for Applied Chemistry
& Chemical Biology, Yichun University, Yichun 336000, China
| | - Su-Hong Peng
- Department of Chemistry &
Bioengineering, Key Laboratory of Jiangxi University for Applied Chemistry
& Chemical Biology, Yichun University, Yichun 336000, China
| | - Xin-Kai Chen
- Department of Chemistry &
Bioengineering, Key Laboratory of Jiangxi University for Applied Chemistry
& Chemical Biology, Yichun University, Yichun 336000, China
| | - Huai-Bo Zou
- Department of Chemistry &
Bioengineering, Key Laboratory of Jiangxi University for Applied Chemistry
& Chemical Biology, Yichun University, Yichun 336000, China
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5
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Yu M, Niu K, Wang Z, Liu Y, Wang Q. Visible-Light-Induced Metal-Free Decarboxylative Perfluoroalkylation of Aryl Acrylic Acids. Org Lett 2022; 24:7622-7626. [PMID: 36219166 DOI: 10.1021/acs.orglett.2c03088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Perfluoroalkylation is important for late-stage modification of biologically active molecules. Herein, we report a protocol for visible-light-induced perfluoroalkylation reactions of aryl acrylic acids. These reactions, which use perfluoroalkyl iodides as radical precursors and inexpensive eosin Y as a photocatalyst, proceed in a decarboxylative manner. The easy accessibility of perfluoroalkyl iodides and the broad substrate scope, mild conditions, and metal-free catalyst make this protocol applicable for the transformation of inexpensive raw materials to high-value chemicals.
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Affiliation(s)
- Mo Yu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republic of China
| | - Kaikai Niu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republic of China
| | - Ziwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republic of China.,Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300071, People's Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republic of China
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6
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Wang Q, Liu J, Wang N, Pajkert R, Mei H, Röschenthaler G, Han J. One‐Pot Reaction of (β‐Amino‐α,α‐difluoroethyl)phosphonates with Trifluoromethylated Ketones via Aza‐Wittig Reagents. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Qian Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Jiang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Nana Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Romana Pajkert
- Department of Life Sciences and Chemistry Jacobs University Bremen gGmbH Campus Ring 1 28759 Bremen Germany
| | - Haibo Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Gerd‐Volker Röschenthaler
- Department of Life Sciences and Chemistry Jacobs University Bremen gGmbH Campus Ring 1 28759 Bremen Germany
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
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7
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Shan ZW, Chen XY, Zhang H, Liu HY, Yuan G. Copper Porphyrin-catalyzed C(sp3)-H Activation via Cross Dehydrogenative Coupling: Facile Transformation of Aldehydes to Esters. Synlett 2022. [DOI: 10.1055/a-1813-4235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Copper porphyrin-catalyzed alkane C−H bond functionalization with aldehydes via cross dehydrogenative coupling (CDC) using DTBP oxidant has been firstly described in non-solvents or non-additives system. Different aryl/heteroaryl-carboxilic esters were obtained in good to excellent yields depending on the aldehyde derivatives. This CDC reaction catalyzed by copper porphyrin has the advantages of shorter reaction time, lower reaction temperature and catalyst loading as well as the aerobic reaction atmosphere.
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Affiliation(s)
- Zi-Wei Shan
- Department of Chemistry, South China University of Technology, Guangzhou, China
| | - Xiao-Yan Chen
- Department of Chemistry, South China University of Technology, Guangzhou, China
| | - Hao Zhang
- Department of Chemistry, South China University of Technology, Guangzhou, China
| | - Hai-Yang Liu
- Department of Chemistry, South China University of Technology, Guangzhou, China
| | - Gaoqing Yuan
- Department of Chemistry, South China University of Technology, Guangzhou, China
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8
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Yang S, Chen X, Xiong M, Zhang H, Shi L, Lin D, Liu H. Copper
porphyrin‐catalyzed
C(sp
2
)
—
O bond construction via coupling phenols with formamides. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shuang Yang
- Department of Chemistry, The Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou China
| | - Xiao‐Yan Chen
- Department of Chemistry, The Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou China
| | - Ming‐Feng Xiong
- Department of Chemistry, The Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou China
| | - Hao Zhang
- Department of Chemistry, The Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou China
| | - Lei Shi
- Department of Chemistry Guangdong University of Education Guangzhou China
| | - Dong‐Zi Lin
- Department of Laboratory Medicine Foshan Fourth People's Hospital Foshan China
| | - Hai‐Yang Liu
- Department of Chemistry, The Key Laboratory of Fuel Cell Technology of Guangdong Province South China University of Technology Guangzhou China
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9
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Affiliation(s)
- Pavel K. Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094 Kyiv, Ukraine
- Chemistry Department, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine
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10
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Affiliation(s)
- Vasco F. Batista
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Diana C. G. A. Pinto
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Artur M. S. Silva
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
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11
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Jamali MF, Gupta E, Kumar A, Kant R, Mohanan K. Ag-Catalyzed Trifluoromethylative Ring Expansion of Isatins and Isatin Ketimines with Trifluorodiazoethane. Chem Asian J 2020; 15:757-761. [PMID: 32017397 DOI: 10.1002/asia.201901799] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/03/2020] [Indexed: 01/06/2023]
Abstract
A general method for the construction of trifluoromethylated 2-quinolinones has been established herein by using a trifluoromethylative ring expansion of isatin with trifluorodiazoethane. The strategy provides a platform for the rapid synthesis of a wide range of substituted 3-hydroxy-4-trifluoromethyl-2-quinolinones. This operationally simple and robust Ag-catalyzed protocol successfully transforms isatin ketimines to 3-amino-4-trifluoromethylquinolinones in excellent yields. The utility of this novel method is further illustrated by the conversion of the products into various synthetically and medicinally relevant molecules.
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Affiliation(s)
- Muhammad Fahad Jamali
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, 110025, New Delhi, India
| | - Ekta Gupta
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Anuj Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Ruchir Kant
- Molecular and Structural Biology, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, 110025, New Delhi, India
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12
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Xiong MF, Ali A, Akram W, Zhang H, Si LP, Liu HY. Copper porphyrin as efficient catalysts for esterification of allyl sp3 C H bond with carboxylic acid. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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13
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Li F, Lin D, He T, Zhong W, Huang J. Electrochemical Decarboxylative Trifluoromethylation of
α, β‐
Unsaturated Carboxylic Acids with CF
3
SO
2
Na. ChemCatChem 2019. [DOI: 10.1002/cctc.201900438] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fang‐Yuan Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of Technology Wushan, Tianhe, Guangzhou 510640 P.R. China
| | - Dian‐Zhao Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of Technology Wushan, Tianhe, Guangzhou 510640 P.R. China
| | - Tian‐Jun He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of Technology Wushan, Tianhe, Guangzhou 510640 P.R. China
| | - Wei‐Qiang Zhong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of Technology Wushan, Tianhe, Guangzhou 510640 P.R. China
| | - Jing‐Mei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of Technology Wushan, Tianhe, Guangzhou 510640 P.R. China
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