1
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Gu C, So CM. Regio- and Chemoselective Palladium-Catalyzed Additive-Free Direct C─H Functionalization of Heterocycles with Chloroaryl Triflates Using Pyrazole-Alkyl Phosphine Ligands. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309192. [PMID: 38482750 DOI: 10.1002/advs.202309192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/26/2024] [Indexed: 06/06/2024]
Abstract
A series of new pyrazole-alkyl phosphine ligands with varying cycloalkyl ring sizes that enable additive-free regio- and chemoselective C─H arylation of heterocycles are reported. Excellent α/β selectivity of various heterocycles such as benzo[b]thiophene, thiophene, furan, benzofuran, and thiazole can be achieved using these ligands, along with excellent chemoselectivity of C─Cl over C─OTf of chloroaryl triflates. Mechanistic studies supported by both experimental findings and density functional theory calculations indicate that the pyrazole phosphine ligands with optimal ring sizes allow the reaction to proceed with a lower energy barrier via a concerted metalation-deprotonation pathway.
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Affiliation(s)
- Changxue Gu
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
| | - Chau Ming So
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518000, P. R. China
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2
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Gao Q, Zheng R, Lu J, Li X, Wang D, Cai X, Ren X, Kong Q. Trends in the Potential of Stilbenes to Improve Plant Stress Tolerance: Insights of Plant Defense Mechanisms in Response to Biotic and Abiotic Stressors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7655-7671. [PMID: 38536950 DOI: 10.1021/acs.jafc.4c00326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Stilbenes belong to the naturally synthesized plant phytoalexins, produced de novo in response to various biotic and abiotic stressors. The importance of stilbenes in plant resistance to stress and disease is of increasing interest. However, the defense mechanisms and potential of stilbenes to improve plant stress tolerance have not been thoroughly reviewed. This work overviewed the pentose phosphate pathway, glycolysis pathway, shikimate pathway, and phenylalanine pathway occurred in the synthesis of stilbenes when plants are subjected to biotic and abiotic stresses. The positive implications and underlying mechanisms regarding defensive properties of stilbenes were demonstrated. Ten biomimetic chemosynthesis methods can underpin the potential of stilbenes to improve plant stress tolerance. The prospects for the application of stilbenes in agriculture, food, cosmetics, and pharmaceuticals industries are anticipated. It is hoped that some of the detailed ideas and practices may contribute to the development of stilbene-related products and improvement of plant resistance breeding.
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Affiliation(s)
- Qingchao Gao
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Renyu Zheng
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Jun Lu
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Auckland Bioengineering Institute, University of Auckland, Auckland 1010, New Zealand
| | - Xue Li
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Di Wang
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Xinyu Cai
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Xueyan Ren
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
| | - Qingjun Kong
- Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, Shaanxi China
- Shaanxi Engineering Laboratory of Food Green Processing and Safety Control, Shaanxi Normal University, Xi'an 710119, Shaanxi China
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3
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Zhao Y, Li X, Homölle SL, Wang B, Ackermann L. Electrochemical assembly of isoxazoles via a four-component domino reaction. Chem Sci 2024; 15:1117-1122. [PMID: 38239685 PMCID: PMC10793645 DOI: 10.1039/d3sc05946d] [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: 11/06/2023] [Accepted: 12/10/2023] [Indexed: 01/22/2024] Open
Abstract
Multicomponent domino reactions via electrochemical annulations have emerged as a robust strategy for the rapid assembly of heterocyclics. Herein, an electrochemical annulation via a [1 + 2 + 1 + 1] four-component domino reaction was accomplished in a user-friendly undivided cell setup to assemble valuable five-membered isoxazole motifs. Our approach is characterized by a high level functional group tolerance and operational simplicity, avoiding the tedious and time-consuming preparation of pre-functionalized substrates. Detailed mechanistic studies were conducted including isotopic labeling, kinetic studies, cyclic voltammetry (CV) analysis, and intermediate characterization, providing support for a radical pathway.
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Affiliation(s)
- Yuanyuan Zhao
- Key Laboratory of Xin'an Medicine of the Ministry of Education, School of Pharmacy, Anhui University of Chinese Medicine Hefei 230038 P. R. China
| | - Xinyue Li
- Key Laboratory of Xin'an Medicine of the Ministry of Education, School of Pharmacy, Anhui University of Chinese Medicine Hefei 230038 P. R. China
| | - Simon L Homölle
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry(WISCh), Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Bin Wang
- Key Laboratory of Xin'an Medicine of the Ministry of Education, School of Pharmacy, Anhui University of Chinese Medicine Hefei 230038 P. R. China
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry(WISCh), Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
- Institute of Pharmaceutical Chemistry, Anhui Academy of Chinese Medicine Hefei 230038 P. R. China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry(WISCh), Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
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4
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Li J, Hong C, Niu Y, Wang B, Jiang H. Palladium-Catalyzed Cyclization/Alkenylation of Ynone Oximes with Vinylsilanes for the Assembly of Isoxazolyl Vinylsilanes. Chem Asian J 2024:e202301122. [PMID: 38224122 DOI: 10.1002/asia.202301122] [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: 12/18/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
A palladium-catalyzed cascade cyclization/alkenylation for the assembly of synthetically valuable isoxazolyl vinylsilane derivative has been accomplished. Easily accessible ynone oximes, and available vinylsilane agents were used as the reaction starting materials This protocol features broad substrate scope, good functional group tolerance, and good step- and atom-economy. Remarkably, this approach provides a new approach for the construction of structurally diverse isoxazolyl-containing vinylsilanes with high molecular complexity, showing a promising application in synthetic and pharmaceutical chemistry.
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Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
- Guangdong Province Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, 512005, Shaoguan, P. R. China
| | - Chenjing Hong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Yanan Niu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Bowen Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510640, Guangzhou, P. R China
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5
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Radal L, Almallah H, Labonde M, Roger J, Cattey H, Sabbadin H, Amardeil R, Pirio N, Hierso J. Hybrid Phosphine/Amino-Acid Ligands Built on Phenyl and Ferrocenyl Platforms: Application in the Suzuki Coupling of o-Dibromobenzene with Fluorophenylboronic Acid. ChemistryOpen 2023; 12:e202200190. [PMID: 36635048 PMCID: PMC9836907 DOI: 10.1002/open.202200190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/10/2022] [Indexed: 01/14/2023] Open
Abstract
We describe the synthesis and characterization of two classes of hybrid phosphino ligands functionalized with amino ester or amino acid groups. These compounds are built either on a rigid planar phenyl platform or on a functionalized - conformationally controlled - rotational ferrocene backbone. Modifications at the -PR2 phosphino groups (R=aryl and alkyl, with various steric bulk, Ph, Mes, i-Pr, Cy) and at the amino acid/amino ester functions are reported, showing a valuable high modularity. The coordination chemistry of these compounds regarding palladium and gold was investigated, in particular with respect to the coordination mode of the phosphino groups and the preferred interaction with metals for the amino ester and amino acid functions. For all the hybrid ligands, based either on ferrocenyl or phenyl platforms, the (P,N)-chelating effect dominates in solution for coordination to Pd(II), while linear P-Au(I) complexes without interaction with the amino groups are assumed. The investigation of the catalytic activity of these new ligands in the demanding palladium-catalyzed Suzuki-Miyaura coupling of o-dibromoarenes with fluorophenylboronic acid underlined the importance of the amino ester dicyclohexylphosphinoferrocene for avoiding the deleterious homocoupling and arene oligomerization side-reactions that were otherwise observed with the other phosphine ligands.
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Affiliation(s)
- Léa Radal
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Hamze Almallah
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Marine Labonde
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Henri Sabbadin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
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6
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Chen L, Wang Z, Liu H, Li X, Wang B. tert-Butyl nitrite triggered radical cascade reaction for synthesizing isoxazoles by a one-pot multicomponent strategy. Chem Commun (Camb) 2022; 58:9152-9155. [PMID: 35894608 DOI: 10.1039/d2cc02823a] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A metal-free radical cyclization/dehydrogenation cascade of alkenes with aldehydes has been developed for the synthesis of 3,5-disubstituted isoxazoles in a one-pot system. This protocol features excellent functional group tolerance and operational simplicity, and is easily scaled up. The radical process is well supported by TEMPO-adducts and the intermediate β-carbonyl ketoxime.
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Affiliation(s)
- Leijing Chen
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China.
| | - Zhen Wang
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China.
| | - Hui Liu
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China.
| | - Xinyue Li
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China.
| | - Bin Wang
- Key Laboratory of Xin'an Medicine of the Ministry of Education, Anhui University of Chinese Medicine, Hefei, 230038, P. R. China. .,Institute of Pharmaceutical Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230038, P. R. China
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7
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Li J, Cen L, He D, Zhou D, Huang S. Palladium‐Catalyzed Cascade Desulfitative Arylation of Acetylinic Oximes with Sodium Arylsulfinates. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianxiao Li
- South China University of Technology School of Chemistry and Chemical Engineering wushan road 510640 Guangzhou CHINA
| | - Liying Cen
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Dan He
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Daohao Zhou
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Songxuan Huang
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
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8
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Zheng DZ, Li DH, Liu H, Shao Y, Ke Z, Liu FS. Bis(imino)acenaphthene (BIAN)-Supported N-Heterocyclic Carbene Palladium Complexes with Ancillary Ligands: Readily Activated Precatalysts for Direct C–H Arylation of Thiophenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Di-Zhong Zheng
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Dong-Hui Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Huan Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
| | - Youxiang Shao
- School of Materials Science &Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhuofeng Ke
- School of Materials Science &Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, China
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9
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Km K, Kumar S, Kumar A, Kant R, Chintakunta R. Palladium‐Catalyzed Intramolecular C‐H Heteroarylation to Access Fused Tricyclic Oxazolo[4,5‐c]Quinolines. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kajol Km
- CSIR-CDRI: Central Drug Research Institute Medicinal & Process Chemistry Division CSIR-CDRI, Lucknow, UP, India 226031 LUCKNOW INDIA
| | - Sujeet Kumar
- CSIR-CDRI: Central Drug Research Institute Medicinal & Process Chemistry Division CSIR-CDRI, Lucknow, UP, India 226031 LUCKNOW INDIA
| | - Amit Kumar
- CSIR-CDRI: Central Drug Research Institute Medicinal & Process Chemistry Division CSIR-CDRI, Lucknow, UP, India 226031 LUCKNOW INDIA
| | - Ruchir Kant
- CSIR-CDRI: Central Drug Research Institute Medicinal & Process Chemistry Division CSIR-CDRI, Lucknow, UP, India 226031 LUCKNOW INDIA
| | - Ramesh Chintakunta
- CSIR-CDRI: Central Drug Research Institute Medicinal and Process Chemistry Division CSIR-CDRI, Lucknow, UP, India 226031 LUCKNOW INDIA
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10
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Rossi R, Ciofalo M. Palladium-Catalysed Intermolecular Direct C–H Bond Arylation of Heteroarenes with Reagents Alternative to Aryl Halides: Current State of the Art. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220201124008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Abstract: This unprecedented review with 322 references provides a critical up-to-date picture of the Pd-catalysed intermolecular direct C–H bond arylation of heteroarenes with arylating reagents alternative to aryl halides that include aryl sulfonates (aryl triflates, tosylates, mesylates, and imidazole-1-sulfonates), diaryliodonium salts, [(diacetoxy)iodo]arenes, arenediazonium salts, 1-aryltriazenes, arylhydrazines and N’-arylhydrazides, arenesulfonyl chlorides, sodium arenesulfinates, arenesulfinic acids, and arenesulfonohydrazides. Particular attention has been paid to summarise the preparation of the various arylating reagents and to highlight the practicality, versatility, and limitations of the various developed arylation protocols, also comparing their results with those achieved in analogous Pd-catalysed arylation reactions involving the use of aryl halides as electrophiles. Mechanistic proposals have also been briefly summarised and discussed. However, data concerning Pd-catalysed direct C–H bond arylations involving the C–H bonds of aryl substituents of the examined heteroarene derivatives have not been taken into account.
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Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica Industriale, University of Pisa, Via G. Moruzzi 3, I-56124 Pisa, Italy
| | - Maurizio Ciofalo
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, University of Palermo, Viale delle Scienze, Edificio 4, I-90128, Palermo, Italy
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11
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Abstract
The discovery of ferrocene, [Fe(η5-C5H5)2], seventy years ago has significantly influenced chemical research and provided a key impetus for establishing and rapidly expanding organometallic chemistry, which has continued at a...
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12
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Vosáhlo P, Císařová I, Štěpnička P. Synthesis, coordination behavior, and catalytic properties of dppf congeners with an inserted carbonyl moiety. NEW J CHEM 2022. [DOI: 10.1039/d2nj04270c] [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
Dppf-type ligands, desymmetrized by an inserted carbonyl group coordinate Pd(ii) and Pd(0). Among the air-stable Pd(0) complexes, the compound containing the least electron-donating ligand gives the best catalytic results in the Stille reaction.
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Affiliation(s)
- Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
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13
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Madhavan S, Keshri SK, Kapur M. Transition Metal‐Mediated Functionalization of Isoxazoles: A Review. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100560] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Suchithra Madhavan
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Santosh Kumar Keshri
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road Bhopal 462066, MP India
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14
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Parmar U, Somvanshi D, Kori S, Desai AA, Dandela R, Maity DK, Kapdi AR. Room-Temperature Amination of Chloroheteroarenes in Water by a Recyclable Copper(II)-Phosphaadamantanium Sulfonate System. J Org Chem 2021; 86:8900-8925. [PMID: 34156851 DOI: 10.1021/acs.joc.1c00845] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Buchwald-Hartwig amination of chloroheteroarenes has been a challenging synthetic process, with very few protocols promoting this important transformation at ambient temperature. The current report discusses about an efficient copper-based catalytic system (Cu/PTABS) for the amination of chloroheteroarenes at ambient temperature in water as the sole reaction solvent, a combination that is first to be reported. A wide variety of chloroheteroarenes could be coupled efficiently with primary and secondary amines as well as selected amino acid esters under mild reaction conditions. Catalytic efficiency of the developed protocol also promotes late-stage functionalization of active pharmaceutical ingredients (APIs) such as antibiotics (floxacins) and anticancer drugs. The catalytic system also performs efficiently at a very low concentration of 0.0001 mol % (TON = 980,000) and can be recycled 12 times without any appreciable loss in activity. Theoretical calculations reveal that the π-acceptor ability of the ligand PTABS is the main reason for the appreciably high reactivity of the catalytic system. Preliminary characterization of the catalytic species in the reaction was carried out using UV-VIS and ESR spectroscopy, providing evidence for the Cu(II) oxidation state.
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Affiliation(s)
- Udaysinh Parmar
- Aether Industries Limited, B-21/7, Hojiwala Industrial Estate, Sachin, Surat 394230, Gujarat, India
| | - Dipesh Somvanshi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh road, Matunga, Mumbai 400019, India
| | - Santosh Kori
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh road, Matunga, Mumbai 400019, India
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Khragpur extension Centre, Mouza Samantpuri, Bhubaneswar 751013, Odisha, India
| | - Aman A Desai
- Aether Industries Limited, B-21/7, Hojiwala Industrial Estate, Sachin, Surat 394230, Gujarat, India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Khragpur extension Centre, Mouza Samantpuri, Bhubaneswar 751013, Odisha, India
| | - Dilip K Maity
- Chemical Sciences, Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Chemical Sciences, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh road, Matunga, Mumbai 400019, India
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15
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Horký F, Císařová I, Štěpnička P. Synthesis, Reactivity, and Coordination of Semihomologous dppf Congeners Bearing Primary Phosphine and Primary Phosphine Oxide Groups. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00767] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
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16
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Karlinskii BY, Ananikov VP. Catalytic C-H Functionalization of Unreactive Furan Cores in Bio-Derived Platform Chemicals. CHEMSUSCHEM 2021; 14:558-568. [PMID: 33207076 DOI: 10.1002/cssc.202002397] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/17/2020] [Indexed: 06/11/2023]
Abstract
C-H functionalization is one of the most convenient and powerful tools in the arsenal of modern chemistry, deservedly nominated as the "Holy Grail" of organic synthesis. A frequent disadvantage of this method is the need for harsh reaction conditions to carry out transformations of inert C-H bonds, which limits the possibility of its use for modifying less stable substrates. Biomass-derived furan platform chemicals, which have a relatively unstable aromatic furan core and highly reactive side chain substituents, are extremely promising and valuable organic molecules that are currently widely used in a variety of research and industrial fields. The high sensitivity of furan derivatives to acids, strong oxidants, and high temperatures significantly limits the use of classical methods of C-H functionalization for their modification. New methods of catalytic functionalization of non-reactive furan cores are urgently required to obtain a new generation of materials with controlled properties and potentially bioactive substances.
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Affiliation(s)
- Bogdan Y Karlinskii
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospekt 47, Moscow, 119991, Russia
| | - Valentine P Ananikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospekt 47, Moscow, 119991, Russia
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17
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Huang H, Li H, Cordier M, Soulé J, Doucet H. Pd‐Catalyzed Direct Arylations of Heteroarenes with Polyfluoroalkoxy‐Substituted Bromobenzenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Haoran Li
- CNRS, ISCR‐UMR 6226 Univ Rennes 35000 Rennes France
| | | | | | - Henri Doucet
- CNRS, ISCR‐UMR 6226 Univ Rennes 35000 Rennes France
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18
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Tian YM, Guo XN, Wu Z, Friedrich A, Westcott SA, Braunschweig H, Radius U, Marder TB. Ni-Catalyzed Traceless, Directed C3-Selective C–H Borylation of Indoles. J Am Chem Soc 2020; 142:13136-13144. [DOI: 10.1021/jacs.0c05434] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ya-Ming Tian
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Xiao-Ning Guo
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Zhu Wu
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Stephen A. Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, New Brunswick E4L 1G8, Canada
| | - Holger Braunschweig
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Todd B. Marder
- Institut für Anorganische Chemie, and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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19
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Li J, Lin Z, Wu W, Jiang H. Recent advances in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00609b] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarized the recent developments in metal catalyzed or mediated cyclization/functionalization of alkynes to construct isoxazoles.
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Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zidong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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20
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Kang E, Kim HT, Joo JM. Transition-metal-catalyzed C–H functionalization of pyrazoles. Org Biomol Chem 2020; 18:6192-6210. [DOI: 10.1039/d0ob01265c] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This review describes recent advances in transition-metal-catalyzed C–H functionalization reactions of pyrazoles to form new C–C and C–heteroatom bonds on the pyrazole ring.
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Affiliation(s)
- Eunsu Kang
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Hyun Tae Kim
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Jung Min Joo
- Department of Chemistry and Chemistry Institute for Functional Materials
- Pusan National University
- Busan 46241
- Republic of Korea
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21
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Mao S, Shi X, Soulé JF, Doucet H. Direct Arylations of Heteroarenes with Benzenesulfonyl Chlorides Using Pd/C Catalyst. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901561] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shuxin Mao
- CNRS, ISCR-UMR 6226; Univ Rennes; 35000 Rennes France
| | - Xinzhe Shi
- CNRS, ISCR-UMR 6226; Univ Rennes; 35000 Rennes France
| | | | - Henri Doucet
- CNRS, ISCR-UMR 6226; Univ Rennes; 35000 Rennes France
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22
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Yamaguchi M, Fujiwara S, Manabe K. Synthesis of 2,2,5-Trisubstituted 2H-Pyrroles and 2,3,5-Trisubstituted 1H-Pyrroles by Ligand-Controlled Site-Selective Dearomative C2-Arylation and Direct C3-Arylation. Org Lett 2019; 21:6972-6977. [DOI: 10.1021/acs.orglett.9b02559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Miyuki Yamaguchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Sakiko Fujiwara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kei Manabe
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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23
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Radal L, Vosáhlo P, Roger J, Cattey H, Amardeil R, Císařová I, Štěpnička P, Pirio N, Hierso J. Highly Functionalized Brønsted Acidic/Lewis Basic Hybrid Ferrocene Ligands: Synthesis and Coordination Chemistry. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Léa Radal
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Petr Vosáhlo
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
- Institut Universitaire de France 103 Boulevard Saint Michel 75005 Paris Cedex France
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24
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Perego LA, Wagschal S, Grüber R, Fleurat‐Lessard P, El Kaïm L, Grimaud L. From Benzofurans to Indoles: Palladium‐Catalyzed Reductive Ring‐Opening and Closure
via
β‐Phenoxide Elimination. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Luca A. Perego
- PASTEUR, Département de chimie, École normale supérieure, PSL UniversitySorbonne Université, CNRS 75005 Paris France
- Institut de Recherche de Chimie ParisCNRS-Chimie ParisTech, UMR 8247 11 rue P. et M. Curie 75005 Paris France
| | - Simon Wagschal
- Laboratoire LSO ENSTA-Polytechnique-CNRS, UMR 7652Ecole Nationale Supérieure de Techniques Avancées 828 Bd des Maréchaux 91128 Palaiseau France
- current address: Discovery, Product Development and SupplyJanssen Pharmaceutica Hochstrasse 201 8200 Schaffhausen Switzerland
| | - Raymond Grüber
- Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1Laboratoire de Chimie UMR 5182 46 Allée d'Italie 69364 Lyon France
- Institut Francilien des Sciences AppliquéesUniversité Paris-Est, UPEM 5 boulevard Descartes 77454 Champs-sur-Marne Cedex 02 France
| | - Paul Fleurat‐Lessard
- Univ Lyon, Ecole Normale Supérieure de Lyon, CNRS, Université Lyon 1Laboratoire de Chimie UMR 5182 46 Allée d'Italie 69364 Lyon France
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR-CNRS 6302Université de Bourgogne Franche-Comté 9 Avenue Alain Savary 21078 Dijon France
| | - Laurent El Kaïm
- Laboratoire LSO ENSTA-Polytechnique-CNRS, UMR 7652Ecole Nationale Supérieure de Techniques Avancées 828 Bd des Maréchaux 91128 Palaiseau France
| | - Laurence Grimaud
- PASTEUR, Département de chimie, École normale supérieure, PSL UniversitySorbonne Université, CNRS 75005 Paris France
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25
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Yang W, Yao Y, Yang X, Deng Y, Lin Q, Yang D. Synthesis of C4-alkynylisoxazoles via a Pd-catalyzed Sonogashira cross-coupling reaction. RSC Adv 2019; 9:8894-8904. [PMID: 35517684 PMCID: PMC9061866 DOI: 10.1039/c9ra00577c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/06/2019] [Indexed: 12/24/2022] Open
Abstract
A Pd-catalyzed Sonogashira cross-coupling reaction for the synthesis of C4-alkynylisoxazoles from 3,5-disubsitituted-4-iodoisoxazoles and terminal alkynes was described, which could afford the corresponding products with high yield (up to 98%). The results indicated that the steric effect from the group at the C3 position of the isoxazole had greater influence on the cross-coupling reaction than that from the group at the C5 position. In addition, the group at the C3 position of the isoxazole showed negligible electronic effects on the cross-coupling reaction. Furthermore, a gram-scale reaction of the Sonogashira coupling reaction was also investigated. Finally, a plausible mechanism for the Sonogashira coupling reaction was proposed. A Pd-catalyzed Sonogashira cross-coupling reaction for the synthesis of C4-alkynylisoxazoles from 3,5-disubsitituted-4-iodoisoxazoles and terminal alkynes was described, which could afford the corresponding products with high yield (up to 98%).![]()
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Affiliation(s)
- Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Xin Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Yingying Deng
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment
- Ministry of Education
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
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26
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Mao S, Shi X, Soulé JF, Doucet H. Exploring Green Solvents Associated to Pd/C as Heterogeneous Catalyst for Direct Arylation of Heteroaromatics with Aryl Bromides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800596] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuxin Mao
- Univ Rennes; CNRS; ISCR-UMR 6226, F- 35000 Rennes France
| | - Xinzhe Shi
- Univ Rennes; CNRS; ISCR-UMR 6226, F- 35000 Rennes France
| | | | - Henri Doucet
- Univ Rennes; CNRS; ISCR-UMR 6226, F- 35000 Rennes France
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27
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Bárta O, Císařová I, Štěpnička P. Phosphinomethylation of [1′-(diphenylphosphino)ferrocenyl]-methylamines as a route to unsymmetric ferrocene diphosphine ligands. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.11.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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El Hafi M, Naas M, Loubidi M, Jouha J, Ramli Y, Mague JT, Essassi EM, Guillaumet G. Palladium-catalyzed regioselective direct C H arylation of pyrazolo[3,4- d ]pyrimidines. CR CHIM 2017. [DOI: 10.1016/j.crci.2017.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Boyaala R, Touzani R, Guerchais V, Soulé JF, Doucet H. Synthesis of 2-(fluorinated aryl)pyridine derivatives via palladium-catalyzed C H bond arylation of fluorobenzenes using 2-halopyridines as aryl sources. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.06.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Yiğit B, Gürbüz N, Yiğit M, Dağdeviren Z, Özdemir İ. Palladium(II) N-heterocyclic carbene complexes as catalysts for the direct arylation of pyrrole derivatives with aryl chlorides. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Synthesis of Two Isomeric Ferrocene Phosphanylcarboxylic Acids and their Pd
II
Complexes with and without Auxiliary
ortho
‐Metalated C,E‐Ligands (E = N and S). Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700167] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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32
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Ahmed J, Sau SC, P S, Hota PK, Vardhanapu PK, Vijaykumar G, Mandal SK. Direct C-H Arylation of Heteroarenes with Aryl Chlorides by Using an Abnormal N-Heterocyclic-Carbene-Palladium Catalyst. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601218] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jasimuddin Ahmed
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Samaresh Chandra Sau
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Sreejyothi P
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Pradip Kumar Hota
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Pavan K. Vardhanapu
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Gonela Vijaykumar
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
| | - Swadhin K. Mandal
- Department of Chemical Sciences; Indian Institute of Science Education and Research, Kolkata; 741246 Mohanpur India
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33
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Rampazzi V, Roger J, Amardeil R, Penouilh MJ, Richard P, Fleurat-Lessard P, Hierso JC. Gold(I) Complexes of Ferrocenyl Polyphosphines: Aurophilic Gold Chloride Formation and Phosphine-Concerted Shuttling of a Dinuclear [ClAu···AuCl] Fragment. Inorg Chem 2016; 55:10907-10921. [PMID: 27748585 DOI: 10.1021/acs.inorgchem.6b01318] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A smart steric control of the metallocene backbone in bis- and poly(phosphino)ferrocene ligands favors intramolecular aurophilic interactions between [AuCl] fragments in polynuclear gold(I) complexes. We synthesized and characterized by multinuclear NMR and X-ray diffraction analysis mono-, di-, and polynuclear gold complexes of constrained ferrocenyl diphosphines, which bear either bulky tert-butyl groups or more flexible siloxane substituents at the cyclopentadienyl rings. The complexes meso-1,1'-bis(diphenylphosphino)-3,3'-di-tert-butylferrocene (4-m), rac-1,1'-bis[bis(5-methyl-2-furyl)phosphino]-3,3'-di-tert-butylferrocene (5-r), and rac-1,1'-bis(diphenylphosphino)-3,3'-bis[(tri-iso-propylsilyl)oxy]ferrocene (6-r) were used to form dinuclear gold complexes. Coordination of tert-butylated ferrocenyl phosphines generated aurophilic interactions in the corresponding dinuclear gold complexes, contrary to gold(I) complexes reported with 1,1'-bis(diphenylphosphino)ferrocene. The structurally related tetraphosphine 1,1',2,2'-tetrakis(diphenylphosphino)-4,4'-di-tert-butylferrocene (11) also gave access to mononuclear, dinuclear, and the original trinuclear gold chloride aurophilic complexes in which 14e- to 16e- gold centers coexist. In such complexes, nonbonded ("through-space") 31P-31P' nuclear spin couplings were evidenced by high-resolution NMR. In these interactions nuclear spin information is transferred between the lone-pair electron of an uncoordinated phosphorus P and a phosphorus P' that is involved in a σ covalent bond Au-P'. The dinuclear aurophilic complex displayed a concerted shuttling of its [ClAu···AuCl] fragment between the four phosphorus donors of the tetraphosphine ligand. Thus, an aurophilic Au···Au bond, which is assumed to be a weak energy interaction, can be conserved within a dynamic shuttling process at high temperature involving an intramolecular coordination-decoordination process of digold(I) at phosphorus atoms.
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Affiliation(s)
- Vincent Rampazzi
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Marie-José Penouilh
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France.,Institut Universitaire de France (IUF) , 103 Boulevard Saint Michel, 75005 Paris Cedex, France
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34
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Liu J, Peng H, Yang Y, Jiang H, Yin B. Regioselective and Stereoselective Pd-Catalyzed Intramolecular Arylation of Furans: Access to Spirooxindoles and 5H-Furo[2,3-c]quinolin-4-ones. J Org Chem 2016; 81:9695-9706. [DOI: 10.1021/acs.joc.6b01774] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jianchao Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Hui Peng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Yongjie Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province,
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
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35
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Chikhi S, Djebbar S, Soulé JF, Doucet H. Environmentally-Safe Conditions for a Palladium-Catalyzed Direct C3-Arylation with High Turn Over Frequency of Imidazo[1,2-b
]pyridazines Using Aryl Bromides and Chlorides. Chem Asian J 2016; 11:2443-52. [DOI: 10.1002/asia.201600827] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Sabah Chikhi
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS; Université de Rennes 1, Campus de Beaulieu; 263 avenue du Général Leclerc 35042 Rennes Cedex France
- Laboratoire d'hydrométallurgie et chimie inorganique moléculaire Faculté de Chimie U.S.T.H.B.; Bab-Ezzouar 16042 Alger Algeria)16042
| | - Safia Djebbar
- Laboratoire d'hydrométallurgie et chimie inorganique moléculaire Faculté de Chimie U.S.T.H.B.; Bab-Ezzouar 16042 Alger Algeria)16042
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS; Université de Rennes 1, Campus de Beaulieu; 263 avenue du Général Leclerc 35042 Rennes Cedex France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS; Université de Rennes 1, Campus de Beaulieu; 263 avenue du Général Leclerc 35042 Rennes Cedex France
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36
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Verschoor-Kirss MJ, Hendricks O, Verschoor CM, Conry R, Kirss RU. Chemical oxidation of ferrocenyl(phenyl)phosphines and ferrocenyl(phenyl)phosphine chalcogenides. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Rossi R, Lessi M, Manzini C, Marianetti G, Bellina F. Achievement of regioselectivity in transition metal-catalyzed direct C–H (hetero)arylation reactions of heteroarenes with one heteroatom through the use of removable protecting/blocking substituents or traceless directing groups. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.037] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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38
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Aidene M, Belkessam F, Soulé JF, Doucet H. Reactivity of 2,1-Benzisoxazole in Palladium-Catalyzed Direct Arylation with Aryl Bromides. ChemCatChem 2016. [DOI: 10.1002/cctc.201600047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mohand Aidene
- Département de chimie; Tizi Ouzou University, BP 17 RP; 15000 Tizi-Ouzou Algeria
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes, “Organométalliques: Matériaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
| | - Fatma Belkessam
- Département de chimie; Tizi Ouzou University, BP 17 RP; 15000 Tizi-Ouzou Algeria
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes, “Organométalliques: Matériaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes, “Organométalliques: Matériaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes; UMR 6226 CNRS-Université de Rennes, “Organométalliques: Matériaux et Catalyse”; Campus de Beaulieu 35042 Rennes France
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39
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Poh JS, García-Ruiz C, Zúñiga A, Meroni F, Blakemore DC, Browne DL, Ley SV. Synthesis of trifluoromethylated isoxazoles and their elaboration through inter- and intra-molecular C–H arylation. Org Biomol Chem 2016; 14:5983-91. [DOI: 10.1039/c6ob00970k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report conditions for the preparation of a range of trifluoromethylated isoxazole building blocks through the cycloaddition reaction of trifluoromethyl nitrile oxide and their subsequent derivatisation.
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Affiliation(s)
- Jian-Siang Poh
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
| | | | - Andrea Zúñiga
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
| | | | | | - Duncan L. Browne
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
- School of Chemistry
| | - Steven V. Ley
- Department of Chemistry
- University of Cambridge
- Cambridge
- UK
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40
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Ruch AA, Handa S, Kong F, Nesterov VN, Pahls DR, Cundari TR, Slaughter LM. Competing amination and C–H arylation pathways in Pd/xantphos-catalyzed transformations of binaphthyl triflates: switchable routes to chiral amines and helicene derivatives. Org Biomol Chem 2016; 14:8123-40. [DOI: 10.1039/c6ob01102k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A Pd(OAc)2/xantphos catalyst system can be tuned to promote either amination or C–H arylation of hindered binaphthyl 2-triflates, with xantphos's hemilability playing a key role.
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Affiliation(s)
- Aaron A. Ruch
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | - Sachin Handa
- Department of Chemistry
- Oklahoma State University Stillwater
- Oklahoma
- USA
| | - Fanji Kong
- Department of Chemistry
- University of North Texas
- Denton
- USA
| | | | - Dale R. Pahls
- Department of Chemistry
- University of North Texas
- Denton
- USA
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41
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Yu J, Moon HR, Kim SY, Kim JN. Aerobic Transition-Metal-Free Synthesis of 2,3-Diarylindoles and 5-Aryluracils via Oxidative Nucleophilic Substitution of Hydrogen Pathway. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10629] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin Yu
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Su Yeon Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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42
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Luo BT, Liu H, Lin ZJ, Jiang J, Shen DS, Liu RZ, Ke Z, Liu FS. Aerobic and Efficient Direct Arylation of Five-Membered Heteroarenes and Their Benzocondensed Derivatives with Aryl Bromides by Bulky α-Hydroxyimine Palladium Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00181] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bao-Tian Luo
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Huan Liu
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Zhi-Jie Lin
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Jingxing Jiang
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry/KLGHEI of Environment
and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
| | - Dong-Sheng Shen
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Rui-Zhi Liu
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Zhuofeng Ke
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry/KLGHEI of Environment
and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
| | - Feng-Shou Liu
- School
of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
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43
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Allouch F, Dwadnia N, Vologdin NV, Svyaschenko YV, Cattey H, Penouilh MJ, Roger J, Naoufal D, Ben Salem R, Pirio N, Hierso JC. Converging and Diverging Synthetic Strategies to Tetradentate (N,N′)-Diaminomethyl,(P,P′)-Ferrocenyl Ligands: Influence of tert-Butyl Groups on Ferrocene Backbone Conformation. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00601] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Fatima Allouch
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Nejib Dwadnia
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Nikolay V. Vologdin
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Yurii V. Svyaschenko
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Hélène Cattey
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Marie-José Penouilh
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Julien Roger
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Daoud Naoufal
- Laboratoire
de Chimie de Coordination Inorganique et Organométallique,
Faculté des Sciences, Université Libanaise, Beyrouth−Hadath, Lebanon
| | - Ridha Ben Salem
- Laboratoire
de Chimie Organique Physique UR11ES74, Faculté des Sciences, Université de Sfax, 3038 Sfax, Tunisia
| | - Nadine Pirio
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Jean-Cyrille Hierso
- Institut
de Chimie
Moléculaire de l’Université de Bourgogne, ICMUB UMR 6302 CNRS, Université de Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078 Dijon, France
- Institut Universitaire de France (IUF), 103 Boulevard Saint-Michel, 75005 Paris, France
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44
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Varaksin MV, Utepova IA, Chupakhin ON, Charushin VN. Direct nuclophilic C–H functionalization of azines and their N-oxides by lithium derivatives of aldonitrones. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.061] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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45
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Yin SC, Zhou Q, Zhao XY, Shao LX. N-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex Catalyzed Direct C–H Bond Arylation of Benzo[b]furans with Aryl Chlorides. J Org Chem 2015; 80:8916-21. [PMID: 26272350 DOI: 10.1021/acs.joc.5b01544] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shun-Chao Yin
- College
of Chemistry and
Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province 325035, People’s Republic of China
| | - Quan Zhou
- College
of Chemistry and
Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province 325035, People’s Republic of China
| | - Xiao-Yun Zhao
- College
of Chemistry and
Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province 325035, People’s Republic of China
| | - Li-Xiong Shao
- College
of Chemistry and
Materials Engineering, Wenzhou University, Chashan University Town, Wenzhou, Zhejiang Province 325035, People’s Republic of China
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46
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Hu F, Szostak M. Recent Developments in the Synthesis and Reactivity of Isoxazoles: Metal Catalysis and Beyond. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500319] [Citation(s) in RCA: 220] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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47
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Ishikawa S, Noda Y, Wada M, Nishikata T. A Copper-Catalyzed Formal [3 + 2]-Cycloaddition for the Synthesis of All Different Aryl-Substituted Furans and Thiophenes. J Org Chem 2015; 80:7555-63. [PMID: 26158487 DOI: 10.1021/acs.joc.5b01139] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A highly efficient formal [3 + 2]-cycloaddition was established using a copper catalyst. The resulting dihydrofurans were subjected to oxidation followed by arylations to produce tetraarylfurans. In addition, the dihydrofuran can be converted to diaryldihydrothiophene by using Lawesson's reagent. This protocol will facilitate the synthesis of all different aryl-substituted furans and thiophenes.
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Affiliation(s)
- Shingo Ishikawa
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
| | - Yushi Noda
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
| | - Masaru Wada
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
| | - Takashi Nishikata
- Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi, 755-8611, Japan
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48
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Li J, Zhu Z, Yang S, Zhang Z, Wu W, Jiang H. Palladium-Catalyzed Tandem Annulation: A Strategy To Construct 2,3-Difunctionalized Benzofuran Derivatives in Ionic Liquids. J Org Chem 2015; 80:3870-9. [DOI: 10.1021/acs.joc.5b00154] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jianxiao Li
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhongzhi Zhu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shaorong Yang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhenming Zhang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wanqing Wu
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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49
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50
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Brahim M, Smari I, Ben Ammar H, Ben Hassine B, Soulé JF, Doucet H. Conditions for palladium-catalyzed direct arylations of 4-bromo and 4-iodo N-substituted pyrazoles without C–Br or C–I bond cleavage. Org Chem Front 2015. [DOI: 10.1039/c5qo00093a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The Pd-catalyzed arylation at the C5 position ofN-protected pyrazole derivatives bearing bromo or iodo substituents at the C4 position is described.
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Affiliation(s)
- Mariem Brahim
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Imen Smari
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Hamed Ben Ammar
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Bechir Ben Hassine
- Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (UR 11ES56)
- Université de Monastir Faculté des Sciences de Monastir
- Monastir 5000
- Tunisia
| | - Jean-François Soulé
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
| | - Henri Doucet
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Université de Rennes 1 “Organométalliques
- Matériaux et Catalyse”
- 35042 Rennes
- France
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