1
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Yan B, Lei M, Tang Z, Liao H, Xu K. Tandem Electrochemical Oxidation of Polycyclic Aromatic Amines Towards Carbazoles and Phenazine-based Aza-helicenes. Chemistry 2024; 30:e202400614. [PMID: 38505987 DOI: 10.1002/chem.202400614] [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: 02/14/2024] [Revised: 03/17/2024] [Accepted: 03/18/2024] [Indexed: 03/21/2024]
Abstract
Experimental and theoretical study of the regioselectivity and mechanism of polycyclic aromatic amine (PAA) electrochemical oxidation is important for designing nitrogen doped large π-conjugated functional molecules. Herein, we used binary-, ternary-, and quaternary-fused PAAs as electro-oxidative reaction substrates to investigate the yield changes of carbazole and phenazine based aza-helicene other than oligomers, which were obtained through pyrrole and pyrazine annulation pathways. Combined with the restrained electrostatic potential (RESP) and steric hindrance factor analysis of the substrate, the electron spin density distribution of free radical resonance hybrid and the spin population analysis of the atoms in the structure of each free radical tautomer indicate that the degree of delocalized dispersion of N free radical and the resulting change in the spin density distribution of C free radical tautomers determine the reaction regioselectivity. The potential charge of the K-region, Bay-region, and L-region adjacent to the C(α)-C(β1) bond is higher than that of other regions within the molecule, and the charge in these high RESP regions tends to delocalize more strongly toward electron-deficient N free radicals. Thus, the activity of N-C(α)-C(β1) region is increased, which supports the proposed free radical addition and free radical coupling mechanism for the electro-oxidative reaction of PAA.
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Affiliation(s)
- Boning Yan
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Ming Lei
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zefeng Tang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Hengyi Liao
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Kang Xu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
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2
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Corral Suarez C, Colomer I. Trifluoromethylarylation of alkenes using anilines. Chem Sci 2023; 14:12083-12090. [PMID: 37969609 PMCID: PMC10631225 DOI: 10.1039/d3sc03868h] [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: 07/26/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
Nitrogen containing compounds, such as anilines, are some of the most widespread and useful chemical species, although their high and unselective reactivity has prevented their incorporation into many interesting transformations, such as the functionalization of alkenes. Herein we report a method that allows the trifluoromethylarylation of alkenes using anilines, for the first time, with no need for additives, transition metals, photocatalysts or an excess of reagents. An in-depth mechanistic study reveals the key role of hexafluoroisopropanol (HFIP) as a unique solvent, establishing a hydrogen bonding network with aniline and trifluoromethyl reagent, that is responsible for the altered reactivity and exquisite selectivity. This work uncovers a new mode of reactivity that involves the use of abundant anilines as a non-prefunctionalized aromatic source and the simultaneous activation of trifluoromethyl hypervalent iodine reagent.
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Affiliation(s)
- Carlos Corral Suarez
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
| | - Ignacio Colomer
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
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3
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Hu X, Hao S, Wei Y, Wang ZL, Wang H, Feng Y, Qin Q. De novo synthesis of polysubstituted β-naphthylamines via Tf2O-mediated [4+2] annulation of amides with alkynes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Yang Z, Yu JT, Pan C. Recent advances in rhodium-catalyzed C(sp 2)-H (hetero)arylation. Org Biomol Chem 2021; 19:8442-8465. [PMID: 34553744 DOI: 10.1039/d1ob01190a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Arylation is a common behaviour in organic synthesis for the construction of complex structures, especially the biaryls. Among those reported arylation procedures, transition-metal-catalyzed direct C(sp2)-H arylation has been rapidly developed in recent decades and has become a reliable alternative to traditional cross-coupling procedures using organometallic reagents. Great achievements in rhodium-catalyzed C(sp2)-H arylation have been witnessed during the last decade. Aryl halides, simple arenes, aryl boronic acids, arylsilanes, aryl aldehyde, aryl carboxylic acid, diazides, etc. were successfully utilized as arylating reagents under rhodium-catalyzed conditions. In this review, recent achievements in rhodium-catalyzed arylations through C(sp2)-H bond activation were summarized together with the mechanism discussions.
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Affiliation(s)
- Zixian Yang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Changduo Pan
- School of Chemistry & Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
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5
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Smirnov MY, Kalinkin AV, Salanov AN, Sorokin AM, Bukhtiyarov VI. Room-Temperature Interaction of Nitrogen Dioxide with Rhodium Nanoparticles Supported on the Surface of Highly Oriented Pyrolytic Graphite (HOPG). KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421050116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Matsumoto K, Shindo M, Yoshida M. Development of Aerobic Oxidative Transformations of Aromatic C-H Bonds Using a Heterogeneous Metal Catalyst. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University
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7
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Vershinin V, Forkosh H, Ben-Lulu M, Libman A, Pappo D. Mechanistic Insights into the FeCl 3-Catalyzed Oxidative Cross-Coupling of Phenols with 2-Aminonaphthalenes. J Org Chem 2021; 86:79-90. [PMID: 33296193 PMCID: PMC7783733 DOI: 10.1021/acs.joc.0c00874] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The selective FeCl3-catalyzed oxidative cross-coupling reaction between phenols and primary, secondary, and tertiary 2-aminonaphthalene derivatives was investigated. The generality of this scalable method provides a sustainable alternative for preparing N,O-biaryl compounds that are widely used as ligands and catalysts. Based on a comprehensive kinetic investigation, a catalytic cycle involving a ternary complex that binds to both the coupling partners and the oxidant during the key oxidative coupling step is postulated. Furthermore, the studies showed that the reaction is regulated by off-cycle acid-base and ligand exchange processes.
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Affiliation(s)
- Vlada Vershinin
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hagit Forkosh
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Mor Ben-Lulu
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Libman
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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8
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Matsumoto K, Toubaru Y, Tachikawa S, Miki A, Sakai K, Koroki S, Hirokane T, Shindo M, Yoshida M. Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles. J Org Chem 2020; 85:15154-15166. [PMID: 33226808 DOI: 10.1021/acs.joc.0c02020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this study, a heterogeneous rhodium-catalyzed oxidative homocoupling reaction of anilines utilizing molecular oxygen as the sole oxidant is reported. Employing a commercially available and recyclable Rh/C catalyst enabled the oxidative dimerization of various anilines, including N,N-disubstituted and N-monosubstituted anilines, as well as diarylamines, triarylamines, and carbazoles. Additionally, the catalytic protocol was extended to the ortho-ortho coupling of anilines, affording 2,2'-diaminobiphenyls with high regioselectivity. Notably, the developed approach provides rapid access to diversely functionalized benzidines and diaminobiphenyls in an operationally simple, practical, and environmentally friendly manner.
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Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yasunori Toubaru
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Shohei Tachikawa
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Ayaka Miki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Kentaro Sakai
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Syota Koroki
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Tsukasa Hirokane
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Masahiro Yoshida
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
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9
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Zuo Y, He X, Tang Q, Hu W, Zhou T, Shang Y. Palladium-Catalyzed Cascade Decarboxylative Amination/6- endo-dig Benzannulation of o-Alkynylarylketones with N-Hydroxyamides To Access Diverse 1-Naphthylamine Derivatives. Org Lett 2020; 22:3890-3894. [PMID: 32363874 DOI: 10.1021/acs.orglett.0c01183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An efficient and practical one-pot strategy to produce highly substituted 1-naphthylamines via sequential palladium-catalyzed decarboxylative amination/intramolecular 6-endo-dig benzannulation reactions has been described. In this reaction, a broad range of electron-rich, electron-neutral, and electron-deficient o-alkynylarylketones react well with N-hydroxyl aryl/alkylamides to give a diversity of 1-naphthylamines in good to excellent yields under mild reaction conditions. The gram-scale synthesis, with benefits such as undiminished product yield and easy transformation, illustrated the practicality of this method.
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Affiliation(s)
- Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Wangcheng Hu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Tongtong Zhou
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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10
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Vershinin V, Pappo D. M[TPP]Cl (M = Fe or Mn)-Catalyzed Oxidative Amination of Phenols by Primary and Secondary Anilines. Org Lett 2020; 22:1941-1946. [PMID: 32049535 PMCID: PMC7467820 DOI: 10.1021/acs.orglett.0c00296] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Iron-
and manganese-catalyzed para-selective oxidative
amination of (4-R)phenols by primary and secondary anilines was developed.
Depending on the identity of the R group, the products of this efficient
reaction are either benzoquinone anils (C–N coupling) that
are produced via a sequential oxidative amination/dehydrogenation
(R = H), oxidative amination/elimination (R = OMe) steps, or N,O-biaryl compounds (C–C coupling)
that are formed when R = alkyl through an oxidative amination/[3,3]-sigmatropic
rearrangement (quinamine rearrangement) process.
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Affiliation(s)
- Vlada Vershinin
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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11
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Grzybowski M, Sadowski B, Butenschön H, Gryko DT. Synthetic Applications of Oxidative Aromatic Coupling-From Biphenols to Nanographenes. Angew Chem Int Ed Engl 2020; 59:2998-3027. [PMID: 31342599 PMCID: PMC7027897 DOI: 10.1002/anie.201904934] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/28/2019] [Indexed: 12/31/2022]
Abstract
Oxidative aromatic coupling occupies a fundamental place in the modern chemistry of aromatic compounds. It is a method of choice for the assembly of large and bewildering architectures. Considerable effort was also devoted to applications of the Scholl reaction for the synthesis of chiral biphenols and natural products. The ability to form biaryl linkages without any prefunctionalization provides an efficient pathway to many complex structures. Although the chemistry of this process is only now becoming fully understood, this reaction continues to both fascinate and challenge researchers. This is especially true for heterocoupling, that is, oxidative aromatic coupling with the chemoselective formation of a C-C bond between two different arenes. Analysis of the progress achieved in this field since 2013 reveals that many groups have contributed by pushing the boundary of structural possibilities, expanding into surface-assisted (cyclo)dehydrogenation, and developing new reagents.
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Affiliation(s)
- Marek Grzybowski
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Bartłomiej Sadowski
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Holger Butenschön
- Institut für Organische ChemieLeibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | - Daniel T. Gryko
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
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12
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Matsumoto K, Kobayashi Y, Hirokane T, Yoshida M. Aerobic Intramolecular Oxidative Coupling Using Heterogeneous Catalyst for Synthesis of N-Substituted 2,3,6,7-Tetramethoxycarbazoles. Chem Pharm Bull (Tokyo) 2020; 68:167-172. [DOI: 10.1248/cpb.c19-00947] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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13
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Grzybowski M, Sadowski B, Butenschön H, Gryko DT. Syntheseanwendungen der oxidativen aromatischen Kupplung – von Biphenolen zu Nanographenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904934] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marek Grzybowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
| | - Bartłomiej Sadowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
| | - Holger Butenschön
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Deutschland
| | - Daniel T. Gryko
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
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14
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Matsumoto K, Takeda S, Hirokane T, Yoshida M. A Highly Selective Palladium-Catalyzed Aerobic Oxidative Aniline–Aniline Cross-Coupling Reaction. Org Lett 2019; 21:7279-7283. [DOI: 10.1021/acs.orglett.9b02527] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Satoshi Takeda
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Tsukasa Hirokane
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Masahiro Yoshida
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
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15
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Otevrel J, Svestka D, Bobal P. Bianthryl-based organocatalysts for the asymmetric Henry reaction of fluoroketones. Org Biomol Chem 2019; 17:5244-5248. [PMID: 31086873 DOI: 10.1039/c9ob00884e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a catalytic system based on bianthrylbis(thiourea) for the asymmetric Henry reaction of fluoroketones and nitroalkanes that resulted from the screening of a library containing 31 chiral non-racemic organocatalysts. The corresponding adducts were isolated in up to 6 times shorter reaction time in comparison with the previously published organocatalysts. High levels of stereocontrol have been generally observed, with measured product enantiomeric excesses up to 97% and diastereomeric ratio 3 : 2 (anti/syn). The above-mentioned catalysts have been successfully applied to the total asymmetric synthesis of CF3-tethered (S)-halostachines, which has proved that this method constitutes an easy entry to similar enantiopure compounds.
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Affiliation(s)
- Jan Otevrel
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1, 612 42 Brno, Czech Republic.
| | - David Svestka
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1, 612 42 Brno, Czech Republic.
| | - Pavel Bobal
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1, 612 42 Brno, Czech Republic.
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16
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Synthesis of bridgehead-functionalized triptycene quinones via Lewis acid–promoted Diels-Alder reaction of 9-acyloxyanthracenes. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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17
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Kundal S, Chakraborty B, Paul K, Jana U. Efficient two-step synthesis of structurally diverse indolo[2,3-b]quinoline derivatives. Org Biomol Chem 2019; 17:2321-2325. [DOI: 10.1039/c8ob03033b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and efficient synthesis of tetracyclic indolo[2,3-b]quinoline motifs with diverse functional groups is achieved through a simple but conceptually different annulation strategy in excellent yields.
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Affiliation(s)
- Sandip Kundal
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | | | - Kartick Paul
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Umasish Jana
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
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18
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Tian X, Cheng X, Yang X, Ren YL, Yao K, Wang H, Wang J. Aerobic conversion of benzylic sp3 C–H in diphenylmethanes and benzyl ethers to CO bonds under catalyst-, additive- and light-free conditions. Org Chem Front 2019. [DOI: 10.1039/c9qo00004f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalyst-, additive- and light-free aerobic conversion of benzylic C–H to CO bonds is, for the first time, reported.
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Affiliation(s)
- Xinzhe Tian
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemical Engineering & Pharmaceutics
| | - Xinqiang Cheng
- School of Chemical Engineering & Pharmaceutics
- Henan University of Science and Technology
- Luoyang
- P. R. China
| | - Xinzheng Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Yun-Lai Ren
- School of Chemical Engineering & Pharmaceutics
- Henan University of Science and Technology
- Luoyang
- P. R. China
| | - Kaisheng Yao
- School of Chemical Engineering & Pharmaceutics
- Henan University of Science and Technology
- Luoyang
- P. R. China
| | - Huiyong Wang
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- P. R. China
| | - Jianji Wang
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang
- P. R. China
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19
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Matsumoto K. Development of the Direct Transformations of Aromatic C-H Bonds Using a Heterogeneous Metal Catalyst. YAKUGAKU ZASSHI 2018; 138:1353-1361. [DOI: 10.1248/yakushi.18-00137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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20
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Bering L, Vogt M, Paulussen FM, Antonchick AP. Selective, Catalytic, and Metal-Free Coupling of Electron-Rich Phenols and Anilides Using Molecular Oxygen as Terminal Oxidant. Org Lett 2018; 20:4077-4080. [DOI: 10.1021/acs.orglett.8b01631] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Luis Bering
- Department of Chemical Biology, Max-Planck-Institute of Molecular Physiology, 44227 Dortmund, Germany
- Faculty of Chemistry and Chemical Biology, TU Dortmund, 44227 Dortmund, Germany
| | - Melina Vogt
- Faculty of Chemistry and Chemical Biology, TU Dortmund, 44227 Dortmund, Germany
| | - Felix M. Paulussen
- Faculty of Chemistry and Chemical Biology, TU Dortmund, 44227 Dortmund, Germany
| | - Andrey P. Antonchick
- Department of Chemical Biology, Max-Planck-Institute of Molecular Physiology, 44227 Dortmund, Germany
- Faculty of Chemistry and Chemical Biology, TU Dortmund, 44227 Dortmund, Germany
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21
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Xiong M, Hu H, Hu X, Liu Y. Copper-Catalyzed Borylative Cyclization of o-(Cyano)phenyl Propargyl Carbonates: Synthesis of Functionalized 1-Naphthylamines. Org Lett 2018; 20:3661-3665. [DOI: 10.1021/acs.orglett.8b01457] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meijun Xiong
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Hui Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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22
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Ogawa N, Yamaoka Y, Takikawa H, Tsubaki K, Takasu K. Synthesis and Properties of Tribenzocarbazoles via an Acid-Promoted Retro (2+2)-Cycloaddition of Azapropellanes. J Org Chem 2018; 83:7994-8002. [DOI: 10.1021/acs.joc.8b00870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Ogawa
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yousuke Yamaoka
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroshi Takikawa
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogano, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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23
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Forkosh H, Vershinin V, Reiss H, Pappo D. Stereoselective Synthesis of Optically Pure 2-Amino-2′-hydroxy-1,1′-binaphthyls. Org Lett 2018; 20:2459-2463. [DOI: 10.1021/acs.orglett.8b00800] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Hagit Forkosh
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Vlada Vershinin
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hagai Reiss
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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24
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Tian X, Ren F, Zhao B, Ren YL, Zhao S, Wang J. Nitric acid-catalyzed aerobic oxidation of benzylic sp3 C H bonds of isochromans, xanthenes and 9-fluorenone under additive-free conditions. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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25
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Ni Y, Yu Q, Liu Q, Zuo H, Yu HB, Wei WJ, Liao RZ, Zhong F. Iron-Catalyzed Regiospecific Intermolecular Radical Cyclization of Anilines: Strategy for Assembly of 2,2-Disubstituted Indolines. Org Lett 2018; 20:1404-1408. [DOI: 10.1021/acs.orglett.8b00176] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yang Ni
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Qile Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Qihao Liu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Honghua Zuo
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Huai-Bin Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Wen-Jie Wei
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Rong-Zhen Liao
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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26
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Zhang Z, Li C, Wang SH, Zhang FM, Han X, Tu YQ, Zhang XM. Tandem S N2' nucleophilic substitution/oxidative radical cyclization of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds. Org Biomol Chem 2018; 15:3239-3247. [PMID: 28332678 DOI: 10.1039/c7ob00620a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and efficient tandem SN2' nucleophilic substitution/oxidative radical cyclization reaction of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds has been developed by using Mn(OAc)3 as an oxidant, which enables the expeditious synthesis of polysubstituted dihydrofuran (DHF) derivatives in moderate to high yields. The use of weakly acidic hexafluoroisopropanol (HFIP) as the solvent rather than AcOH has successfully improved the yields and expanded the substrate scope of this type of radical cyclization reactions. Mechanistic studies confirmed the cascade reaction process involving a final radical cyclization.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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27
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Ren F, Tian X, Ren YL, Zhao S, Wang J, Zhao B. Nitrogen dioxide-catalyzed aerobic oxidation of benzyl alcohols under cocatalyst and acid-free conditions. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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28
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Maddala S, Mallick S, Venkatakrishnan P. Metal-Free Oxidative C–C Coupling of Arylamines Using a Quinone-Based Organic Oxidant. J Org Chem 2017; 82:8958-8972. [DOI: 10.1021/acs.joc.7b01377] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sudhakar Maddala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sudesh Mallick
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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29
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Nguyen CK, Nguyen NN, Tran KN, Nguyen VD, Nguyen TT, Le DT, Phan NT. Copper ferrite superparamagnetic nanoparticles as a heterogeneous catalyst for directed phenol/formamide coupling. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Wang J, Zhao Y, Gao H, Gao GL, Yang C, Xia W. Visible-Light-Mediated Dehydrogenative Cross-Coupling: Synthesis of Nonsymmetrical Atropisomeric Biaryls. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700242] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Junlei Wang
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
| | - Yating Zhao
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
| | - Han Gao
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
| | - Guo-Lin Gao
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment; School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150080 China
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31
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Xiong M, Xie X, Liu Y. Copper-Catalyzed Borylative Cyclization of in Situ Generated o-Allenylaryl Nitriles with Bis(pinacolato)diboron. Org Lett 2017; 19:3398-3401. [PMID: 28653539 DOI: 10.1021/acs.orglett.7b01355] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A Cu-catalyzed cascade borylcupration/cyclization of in situ generated allene-nitriles with B2pin2 has been developed, which provides highly substituted 3-boryl-1-naphthylamines with excellent regioselectivity and wide functional group compatibility. It has been shown that, for the first time, the catalytically generated allylcopper species can be captured by a cyano group from a normal nitrile to furnish a carbocycle.
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Affiliation(s)
- Meijun Xiong
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu, Shanghai 200032, People's Republic of China
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32
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Matsumoto K, Tachikawa S, Hashimoto N, Nakano R, Yoshida M, Shindo M. Aerobic C–H Oxidation of Arenes Using a Recyclable, Heterogeneous Rhodium Catalyst. J Org Chem 2017; 82:4305-4316. [DOI: 10.1021/acs.joc.7b00300] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kenji Matsumoto
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Shohei Tachikawa
- Interdisciplinary
Graduate School of Engineering Sciences, Kyushu University, 6-1,
Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Noriko Hashimoto
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Rina Nakano
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Masahiro Yoshida
- Faculty
of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Mitsuru Shindo
- Institute
for Materials Chemistry and Engineering, Kyushu University, 6-1,
Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
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33
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34
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Fujimoto S, Matsumoto K, Shindo M. Aerobic Oxidative Intramolecular Aromatic CouplingviaHeterogeneous Metal Catalysts. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600584] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shigenobu Fujimoto
- Interdisciplinary Graduate School of Engineering Sciences; Kyushu University; Kasuga, Fukuoka Japan
| | - Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University; Tokushima Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering; Kyushu University; 6-1, Kasugako-en, Kasuga Fukuoka 816-8580 Japan
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35
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Wang C, Li Y, Zhao J, Cheng B, Wang H, Zhai H. An environmentally friendly approach to pyrrolo[1,2-a]quinoxalines using oxygen as the oxidant. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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Matsumoto K, Yoshida M, Shindo M. Heterogeneous Rhodium-Catalyzed Aerobic Oxidative Dehydrogenative Cross-Coupling: Nonsymmetrical Biaryl Amines. Angew Chem Int Ed Engl 2016; 55:5272-6. [PMID: 26996772 DOI: 10.1002/anie.201600400] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/28/2016] [Indexed: 01/05/2023]
Abstract
The first heterogeneously catalyzed oxidative dehydrogenative cross-coupling of aryl amines is reported herein. 2-Naphthylamine analogues were reacted with various electron-rich arenes using a heterogeneous Rh/C catalyst under mild aerobic conditions, thus affording nonsymmetrical biaryl amines in excellent yields with high selectivities. This reaction provides a mild, operationally simple, and efficient approach for the synthesis of biaryls which are important to pharmaceutical and materials chemistry.
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Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Masahiro Yoshida
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima, 770-8514, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga, 816-8580, Japan.
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37
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Matsumoto K, Yoshida M, Shindo M. Heterogeneous Rhodium-Catalyzed Aerobic Oxidative Dehydrogenative Cross-Coupling: Nonsymmetrical Biaryl Amines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600400] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Kenji Matsumoto
- Faculty of Pharmaceutical Sciences; Tokushima Bunri University; 180 Nishihama-Boji, Yamashiro-cho Tokushima 770-8514 Japan
| | - Masahiro Yoshida
- Faculty of Pharmaceutical Sciences; Tokushima Bunri University; 180 Nishihama-Boji, Yamashiro-cho Tokushima 770-8514 Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering; Kyushu University; 6-1, Kasuga-koen Kasuga 816-8580 Japan
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38
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Tsukamoto H, Ikeda T, Doi T. Palladium(II)-Catalyzed Annulation of Alkynes with 2-(Cyanomethyl)phenylboronates Leading to 3,4-Disubstituted 2-Naphthalenamines. J Org Chem 2015; 81:1733-45. [DOI: 10.1021/acs.joc.5b02378] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hirokazu Tsukamoto
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Taishi Ikeda
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aramaki-aza aoba 6-3, Aoba-ku, Sendai 980-8578, Japan
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39
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Zhao Q, Chen L, Lang H, Wu S, Wang L. Pd(OAc)2/PPh3-Catalyzed Desulfonylative Homocoupling of Arylsulfonyl Chlorides. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201400868] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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