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Nozawa-Kumada K, Iwakawa Y, Onuma S, Shigeno M, Kondo Y. NaH-mediated direct C-H arylation in the presence of 1,10-phenanthroline. Chem Commun (Camb) 2020; 56:7773-7776. [PMID: 32573564 DOI: 10.1039/d0cc00730g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Transition-metal-free coupling of haloarenes with unactivated arenes has been developed in the presence of NaH and 1,10-phenanthroline. Various haloarenes bearing methyl, methoxy, halogen (fluoride, chloride, and bromide), cyano, trifluoromethyl, ester, and amide groups can be cross-coupled with unactivated arenes, or heteroarenes in this reaction.
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Affiliation(s)
- Kanako Nozawa-Kumada
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Yuki Iwakawa
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - So Onuma
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Masanori Shigeno
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Yoshinori Kondo
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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2
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Nozawa-Kumada K, Nakamura K, Kurosu S, Iwakawa Y, Denneval C, Shigeno M, Kondo Y. Tetramethylammonium Fluoride Tetrahydrate-Mediated Transition Metal-Free Coupling of Aryl Iodides with Unactivated Arenes in Air. Chem Pharm Bull (Tokyo) 2019; 67:1042-1045. [PMID: 31582624 DOI: 10.1248/cpb.c19-00452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biaryls are important compounds with widespread applications in many fields. Tetramethylammonium fluoride tetrahydrate was found to promote the biaryl coupling of aryl iodides bearing electron-withdrawing substituents with unactivated arenes. The reaction takes place at temperatures between 100 and 150°C and can be applied to a wide range of aromatic and heteroaromatic rings, affording the products in moderate to high yields. The reaction does not require strong bases or expensive additives that are employed in the existing methods and can be conducted in air and moisture without any precautions.
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Affiliation(s)
| | - Kosuke Nakamura
- Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Satoshi Kurosu
- Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Yuki Iwakawa
- Graduate School of Pharmaceutical Sciences, Tohoku University
| | | | | | - Yoshinori Kondo
- Graduate School of Pharmaceutical Sciences, Tohoku University
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3
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Kapoor R, Chawla R, Yadav LDS. Visible-light-mediated Gomberg-Bachmann reaction: An efficient photocatalytic approach to 2-aminobiphenyls. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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4
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Riveiros R, Tato R, Pérez Sestelo J, Sarandeses LA. Triorganoindium Reagents in Rh-Catalyzed C⁻H Activation/C⁻C Cross-Coupling Reactions of 2-Arylpyridines. Molecules 2018; 23:molecules23071582. [PMID: 29966264 PMCID: PMC6100513 DOI: 10.3390/molecules23071582] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/13/2018] [Accepted: 06/26/2018] [Indexed: 12/01/2022] Open
Abstract
The activation of C–H bonds through catalytic reactions using transition metals is an important challenge in organic chemistry in which the intermediates are related to those produced in the classical cross-coupling reactions. As part of our research program devoted to the development of metal-catalyzed reactions using indium organometallics, a protocol for the C–H activation and C–C coupling of 2-arylpyridines with triorganoindium reagents under Rh(I) catalysis is reported. Under the optimized conditions, we found that Me3In and Ar3In reagents reacted with 2-arylpyridines and related compounds in the presence of Rh(PPh3)3Cl, in PhCl/THF (9:1), at 120 °C for 48 h, to afford the ortho-coupling products in moderate to good yields. The nitrogen atom in the pyridine ring acts as a directing group to assist the functionalization at the ortho position of the aryl group forming a new C–C bond at this position.
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Affiliation(s)
- Ricardo Riveiros
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Rubén Tato
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Luis A Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
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Katsuma Y, Asakawa H, Yamashita M. Reactivity of highly Lewis acidic diborane(4) towards pyridine and isocyanide: formation of boraalkene-pyridine complex and ortho-functionalized pyridine derivatives. Chem Sci 2018; 9:1301-1310. [PMID: 29675176 PMCID: PMC5887101 DOI: 10.1039/c7sc04759b] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/10/2017] [Indexed: 12/14/2022] Open
Abstract
The reaction of pinB-BMes2 (pin = pinacolato, Mes = 2,4,6-Me3C6H2) with Xyl-NC (Xyl = 2,6-Me2C6H3) and pyridine results in the formation of a pyridine-coordinated boraalkene that exhibits an intense color caused by an intramolecular charge-transfer interaction. In the presence of an excess of pyridine, the ortho C-H bond of pyridine was selectively functionalized to afford a quinoid compound or an isocyanide-coupled product. Based on the concentration effect, the reaction stoichiometry, and previously reported DFT calculations, a reaction mechanism that involves several rearrangement reactions was proposed. Using the present method, substituted pyridines and N-heterocycles afforded the corresponding functionalized derivatives. A subsequent hydrolysis of one of the resulting products furnished an aminomethylated pyridine derivative in two steps from parent pyridine.
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Affiliation(s)
- Yuhei Katsuma
- Department of Applied Chemistry , Faculty of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku , 112-8551 , Tokyo , Japan
| | - Hiroki Asakawa
- Department of Applied Chemistry , Faculty of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku , 112-8551 , Tokyo , Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry , Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa-ku , Nagoya , 464-8603 , Aichi , Japan .
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Kiriyama K, Shirakawa E. tert-Butoxide-promoted Coupling of Aryl Iodides with Arenes Using Di-tert-butyl Hyponitrite as an Initiator. CHEM LETT 2017. [DOI: 10.1246/cl.170814] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Kazuya Kiriyama
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502
| | - Eiji Shirakawa
- Department of Applied Chemistry for Environment, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337
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Abstract
Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences. Among a variety of synthetic approaches toward azines, C-H functionalization represents the most rapid and atom-economical transformation, and it is advantageous for the late-stage functionalization of azine-containing functional molecules. Since azines have several C-H bonds with different reactivities, the development of new reactions that allow for the functionalization of azines in a regioselective fashion has comprised a central issue. This review describes recent advances in the C-H functionalization of azines categorized as follows: (1) SNAr reactions, (2) radical reactions, (3) deprotonation/functionalization, and (4) metal-catalyzed reactions.
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Affiliation(s)
- Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Shuya Yamada
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Takeshi Kaneda
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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Wang X, He Y, Ren M, Liu S, Liu H, Huang G. Pd-Catalyzed Ligand-Free Synthesis of Arylated Heteroaromatics by Coupling of N-Heteroaromatic Bromides with Iodobenzene Diacetate, Iodosobenzene, or Diphenyliodonium Salts. J Org Chem 2016; 81:7958-62. [PMID: 27458647 DOI: 10.1021/acs.joc.6b01103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient method for synthesizing arylated heteroaromatics has been reported via Pd-catalyzed ligand-free cross-coupling of N-heteroaromatic bromides with iodine(III) reagents under mild conditions. Iodobenzene diacetate, iodosobenzene, and diphenyliodonium salts act as ideal arylated sources in this reaction, producing bioactive aromatic-substituted pyridines and quinolines in moderate to high yields.
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Affiliation(s)
- Xiajun Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Yongqin He
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Mengdan Ren
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - Shengkang Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
| | - He Liu
- Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Guosheng Huang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University , Lanzhou 730000, China
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Shrestha B, Thapa S, Gurung SK, Pike RAS, Giri R. General Copper-Catalyzed Coupling of Alkyl-, Aryl-, and Alkynylaluminum Reagents with Organohalides. J Org Chem 2016; 81:787-802. [DOI: 10.1021/acs.joc.5b02077] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bijay Shrestha
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Surendra Thapa
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Santosh K. Gurung
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ryan A. S. Pike
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Ramesh Giri
- Department of Chemistry & Chemical Biology, The University of New Mexico, Albuquerque, New Mexico 87131, United States
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Kawamoto T, Sato A, Ryu I. Cyanoborohydride-Promoted Radical Arylation of Benzene. Org Lett 2014; 16:2111-3. [DOI: 10.1021/ol500614q] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Takuji Kawamoto
- Department of Chemistry,
Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Aoi Sato
- Department of Chemistry,
Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Ilhyong Ryu
- Department of Chemistry,
Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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11
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Bonin H, Sauthier M, Felpin FX. Transition Metal-Mediated Direct CH Arylation of Heteroarenes Involving Aryl Radicals. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300865] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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12
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Wang R, Falck JR. Room temperature, open-flask C–H arylation of electron-deficient heteroarenes with triazenes: rapid synthesis of heterobiaryls. Org Chem Front 2014. [DOI: 10.1039/c4qo00213j] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aryl triazenes were coupled with heteroarenes via C–H functionalization to produce heterobiaryls in moderate to good yields at ambient temperature.
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Affiliation(s)
- Rui Wang
- Division of Chemistry
- Department of Biochemistry
- University of Texas Southwestern Medical Center
- Dallas, 75390-9038 USA
| | - John R. Falck
- Division of Chemistry
- Department of Biochemistry
- University of Texas Southwestern Medical Center
- Dallas, 75390-9038 USA
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13
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Zheng X, Yang L, Du W, Ding A, Guo H. Amine-catalyzed direct photoarylation of unactivated arenes. Chem Asian J 2013; 9:439-42. [PMID: 24288232 DOI: 10.1002/asia.201301371] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 10/31/2013] [Indexed: 11/05/2022]
Abstract
Constructing biaryls through direct aromatic C-H functionalization of unactivated arenes has become a popular topic in organic chemistry. Many efficient methods have been developed. In this Communication, a direct arylation of unactivated arenes with a broad range of aryl iodides is reported. This reaction proceeds through a new type of amine-catalyzed single electron transfer initiated radical coupling procedure to form biaryls in high yields under UV irradiation at room temperature. Only 20 mol% of TMEDA is used as the catalyst. No other additives are required for this transformation, thus avoiding the use of toxic transition metal catalysts, strong bases, or large amounts of other organic additives. This greener protocol provides a new strategy to achieve direct aromatic C-H functionalization and offers a new example of cost-effective and environmentally benign access to biaryls.
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Affiliation(s)
- Xingliang Zheng
- Institute of Chemistry & Biological Engineering, Changsha University of Science and Technology, Changsha, 410114 (P. R. China).
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14
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Pieber B, Cantillo D, Kappe CO. Direct Arylation of Benzene with Aryl Bromides using High‐Temperature/High‐Pressure Process Windows: Expanding the Scope of CH Activation Chemistry. Chemistry 2012; 18:5047-55. [DOI: 10.1002/chem.201103748] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Indexed: 11/07/2022]
Affiliation(s)
- Bartholomäus Pieber
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl‐Franzens‐University Graz, Heinrichstrasse 28, 8010 Graz (Austria), Fax: (+43) 316‐3809840
| | - David Cantillo
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl‐Franzens‐University Graz, Heinrichstrasse 28, 8010 Graz (Austria), Fax: (+43) 316‐3809840
| | - C. Oliver Kappe
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl‐Franzens‐University Graz, Heinrichstrasse 28, 8010 Graz (Austria), Fax: (+43) 316‐3809840
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15
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Leowanawat P, Zhang N, Safi M, Hoffman DJ, Fryberger MC, George A, Percec V. trans-Chloro(1-Naphthyl)bis(triphenylphosphine)nickel(II)/PCy3 Catalyzed Cross-Coupling of Aryl and Heteroaryl Neopentylglycolboronates with Aryl and Heteroaryl Mesylates and Sulfamates at Room Temperature. J Org Chem 2012; 77:2885-92. [DOI: 10.1021/jo3001194] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pawaret Leowanawat
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mehtap Safi
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - David J. Hoffman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Miriam C. Fryberger
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Aiswaria George
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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Nishino M, Hirano K, Satoh T, Miura M. Copper-Catalyzed Oxidative Direct Cyclization ofN-Methylanilines with Electron-Deficient Alkenes Using Molecular Oxygen. J Org Chem 2011; 76:6447-51. [DOI: 10.1021/jo2011329] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Baroudi A, Alicea J, Flack P, Kirincich J, Alabugin IV. Radical O→C Transposition: A Metal-Free Process for Conversion of Phenols into Benzoates and Benzamides. J Org Chem 2011; 76:1521-37. [DOI: 10.1021/jo102467j] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Abdulkader Baroudi
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Jeremiah Alicea
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Phillip Flack
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Jason Kirincich
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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Yanagisawa S, Itami K. tert-Butoxide-Mediated CH Bond Arylation of Aromatic Compounds with Haloarenes. ChemCatChem 2011. [DOI: 10.1002/cctc.201000431] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Camacho-Artacho M, Abet V, Frutos LM, Gago F, Alvarez-Builla J, Burgos C. Unusual Approach to 3-Aryl-2-aminopyridines through a Radical Mechanism: Synthesis and Theoretical Rationale from Quantum Mechanical Calculations. J Org Chem 2011; 76:1452-5. [DOI: 10.1021/jo102122h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Castillo RR, Burgos C, Vaquero JJ, Alvarez-Builla J. Radical Intramolecular Arylation of Pyridinium Salts: A Straightforward Entry to 7-Hydroxypyrido[2,1-a]isoquinolinylium Salts. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001071] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Baroudi A, Alicea J, Alabugin I. Radical 1,2-O→C Transposition for Conversion of Phenols into Benzoates by O-Neophyl Rearrangement/Fragmentation Cascade. Chemistry 2010; 16:7683-7. [DOI: 10.1002/chem.201001056] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Kitamura Y, Sako S, Tsutsui A, Monguchi Y, Maegawa T, Kitade Y, Sajiki H. Ligand-Free and Heterogeneous Palladium on Carbon-Catalyzed Hetero-Suzuki-Miyaura Cross-Coupling. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900638] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Wetzel A, Pratsch G, Kolb R, Heinrich M. Radical Arylation of Phenols, Phenyl Ethers, and Furans. Chemistry 2010; 16:2547-56. [DOI: 10.1002/chem.200902927] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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25
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Use of polymer-supported phenyltin for the creation of aryl–aryl or aryl–heteroaryl bonds via Stille cross-coupling reactions. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2009.09.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Heteroaryl Radicals Review. ADVANCES IN HETEROCYCLIC CHEMISTRY 2010. [DOI: 10.1016/s0065-2725(10)10004-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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Kramer RA, Bröhmer MC, Forkel NV, Bannwarth W. A New Robust and Versatile Tetradentate Linker for Amides To be Cleaved under Mild Conditions by Unusual Complexation of the Amide Nitrogen to Cu++. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900291] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Synthesis of functionalized 2-arylpyridines from 2-halopyridines and various aryl halides via a nickel catalysis. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.05.044] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Kobayashi O, Uraguchi D, Yamakawa T. Cp2Ni-KOt-Bu-BEt3 (or PPh3) Catalyst System for Direct C−H Arylation of Benzene, Naphthalene, and Pyridine. Org Lett 2009; 11:2679-82. [DOI: 10.1021/ol900778m] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Osamu Kobayashi
- Sagami Chemical Research Center, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan
| | - Daisuke Uraguchi
- Sagami Chemical Research Center, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan
| | - Tetsu Yamakawa
- Sagami Chemical Research Center, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan
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Aksenov AV, Aksenova IV, Malikova IV, Aksenov NA. Synthesis of bipyridyls by the reaction of allylpyridines with 1,3,5-triazine in polyphosphoric acid. Russ Chem Bull 2009. [DOI: 10.1007/s11172-009-0041-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhu JL, Su YL, Chang YH, Chen IC, Liao CC. Studies on the Amino-Heck Reactions of Unsaturated Ketones O-Phosphinyloximes for the Preparation of Substituted Pyridines. HETEROCYCLES 2009. [DOI: 10.3987/com-08-11508] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Wetzel A, Ehrhardt V, Heinrich M. Synthesis of Amino- and Hydroxybiphenyls by Radical Chain Reaction of Arenediazonium Salts. Angew Chem Int Ed Engl 2008; 47:9130-3. [DOI: 10.1002/anie.200803785] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Wetzel A, Ehrhardt V, Heinrich M. Synthese von Amino- und Hydroxybiphenylen durch radikalische Kettenreaktion von Aryldiazoniumsalzen. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803785] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Abet V, Nuñez A, Mendicuti F, Burgos C, Alvarez-Builla J. A New Class of Pyrazolopyridine Nucleus with Fluorescent Properties, Obtained through Either a Radical or a Pd Arylation Pathway from N-Azinylpyridinium N-Aminides. J Org Chem 2008; 73:8800-7. [DOI: 10.1021/jo801549u] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valentina Abet
- Departamentos de Química Orgánica and Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Araceli Nuñez
- Departamentos de Química Orgánica and Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Francisco Mendicuti
- Departamentos de Química Orgánica and Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Carolina Burgos
- Departamentos de Química Orgánica and Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
| | - Julio Alvarez-Builla
- Departamentos de Química Orgánica and Química Física, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain
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Yanagisawa S, Ueda K, Taniguchi T, Itami K. Potassium t-Butoxide Alone Can Promote the Biaryl Coupling of Electron-Deficient Nitrogen Heterocycles and Haloarenes. Org Lett 2008; 10:4673-6. [DOI: 10.1021/ol8019764] [Citation(s) in RCA: 383] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Shuichi Yanagisawa
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan, and PRESTO, Japan Science and Technology Agency (JST)
| | - Kirika Ueda
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan, and PRESTO, Japan Science and Technology Agency (JST)
| | - Tadashi Taniguchi
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan, and PRESTO, Japan Science and Technology Agency (JST)
| | - Kenichiro Itami
- Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan, and PRESTO, Japan Science and Technology Agency (JST)
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38
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Bröhmer MC, Bannwarth W. Forced Complexation of Nitrogen Leading to a Weakening of Amide Bonds: Application to a New Linker for Solid-Phase Chemistry. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800642] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Córdoba M, Izquierdo ML, Alvarez-Builla J. New approaches to the synthesis of pyridinium N-heteroarylaminides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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40
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Suzuki reaction on pyridinium N-haloheteroarylaminides: regioselective synthesis of 3,5-disubstituted 2-aminopyrazines. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.11.057] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Chatgilialoglu C, Timokhin VI. Silyl Radicals in Chemical Synthesis. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(08)00002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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42
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Affiliation(s)
- Peter M. Zeimentz
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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43
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Núñez A, Sánchez A, Burgos C, Alvarez-Builla J. Pyridinium N-2′-pyridylaminide: radical cyclization for the synthesis of benzonaphthyridine derivatives. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.04.077] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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44
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Crich D, Grant D, Krishnamurthy V, Patel M. Catalysis of stannane-mediated radical chain reactions by benzeneselenol. Acc Chem Res 2007; 40:453-63. [PMID: 17489540 DOI: 10.1021/ar600020v] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The discovery and development of the catalysis of stannane-mediated radical chain reactions by benzeneselenol, generated in situ by reduction of diphenyl diselenide with tributyltin hydride, are described. The catalytic sequence is discussed in terms of polarity reversal catalysis of radical chain reactions, and applications to synthesis are presented. These include the prevention of numerous radical rearrangement reactions, the ability to intervene in certain multistep radical rearrangements, especially aryl and vinyl radical cyclizations, at intermediate stages with advantages to the product profile, and the effective trapping of allyl-, benzyl-, and cyclohexadienyl-type radicals, permitting inter alia the isolation of aryl cyclohexadienes and their application in synthesis.
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Affiliation(s)
- David Crich
- Department of Chemistry, University of Illinois at Chicago, IL 60607-7061, USA.
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45
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Bowman WR, Storey JMD. Synthesis using aromatic homolytic substitution—recent advances. Chem Soc Rev 2007; 36:1803-22. [PMID: 18213987 DOI: 10.1039/b605183a] [Citation(s) in RCA: 247] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- W Russell Bowman
- Department of Chemistry, Loughborough University, Loughborough, Leicester, UK.
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46
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Pyridinium N-2′-pyridylaminide: radical cyclization in the synthesis of annulated 2-aminopyridines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.09.092] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Barbero M, Cadamuro S, Dughera S, Giaveno C. Reactions of Dry Arenediazoniumo-Benzenedisulfonimides with Triorganoindium Compounds. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600527] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Feldman KS, Eastman KJ. Studies on the mechanism of action of prekinamycin, a member of the diazoparaquinone family of natural products: evidence for both sp2 radical and orthoquinonemethide intermediates. J Am Chem Soc 2006; 128:12562-73. [PMID: 16984207 PMCID: PMC2515591 DOI: 10.1021/ja0642616] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The putative reductive activation chemistry of the diazoparaquinone antibiotics was modeled with Bu(3)Sn-H and prekinamycin dimethyl ether along with prekinamycin itself. Reaction in various combinations of aromatic solvents, with and without the nucleophile benzylmercaptan present, led to isolation of both radical-trapping arene adducts and nucleophilic capture benzyl thioether products. On the basis of these product distribution studies, the intermediacies of, first, a cyclopentenyl radical and, next, an orthoquinonemethide electrophile are postulated.
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Affiliation(s)
- Ken S Feldman
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
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49
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50
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Bennasar ML, Roca T, Ferrando F. Regioselective intramolecular reactions of 2-indolylacyl radicals with pyridines: a direct synthetic entry to ellipticine quinones. J Org Chem 2006; 70:9077-80. [PMID: 16238359 DOI: 10.1021/jo0514974] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] 2-Indolylacyl radicals generated from the corresponding selenoesters under hexabutylditin-hnu conditions undergo regioselective intramolecular reaction with unprotonated pyridines to give polycyclic indolylpyridyl ketones. For substrates bearing a (3-pyridyl)methyl moiety connected to the 3-position of the indole ring, the cyclization provides easy access to ellipticine quinones.
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Affiliation(s)
- M-Lluïsa Bennasar
- Laboratory of Organic Chemistry, Faculty of Pharmacy, University of Barcelona, Spain.
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