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Abstract
Nitroxides, also known as nitroxyl radicals, are long-lived or stable radicals with the general structure R1R2N-O•. The spin distribution over the nitroxide N and O atoms contributes to the thermodynamic stability of these radicals. The presence of bulky N-substituents R1 and R2 prevents nitroxide radical dimerization, ensuring their kinetic stability. Despite their reactivity toward various transient C radicals, some nitroxides can be easily stored under air at room temperature. Furthermore, nitroxides can be oxidized to oxoammonium salts (R1R2N═O+) or reduced to anions (R1R2N-O-), enabling them to act as valuable oxidants or reductants depending on their oxidation state. Therefore, they exhibit interesting reactivity across all three oxidation states. Due to these fascinating properties, nitroxides find extensive applications in diverse fields such as biochemistry, medicinal chemistry, materials science, and organic synthesis. This review focuses on the versatile applications of nitroxides in organic synthesis. For their use in other important fields, we will refer to several review articles. The introductory part provides a brief overview of the history of nitroxide chemistry. Subsequently, the key methods for preparing nitroxides are discussed, followed by an examination of their structural diversity and physical properties. The main portion of this review is dedicated to oxidation reactions, wherein parent nitroxides or their corresponding oxoammonium salts serve as active species. It will be demonstrated that various functional groups (such as alcohols, amines, enolates, and alkanes among others) can be efficiently oxidized. These oxidations can be carried out using nitroxides as catalysts in combination with various stoichiometric terminal oxidants. By reducing nitroxides to their corresponding anions, they become effective reducing reagents with intriguing applications in organic synthesis. Nitroxides possess the ability to selectively react with transient radicals, making them useful for terminating radical cascade reactions by forming alkoxyamines. Depending on their structure, alkoxyamines exhibit weak C-O bonds, allowing for the thermal generation of C radicals through reversible C-O bond cleavage. Such thermally generated C radicals can participate in various radical transformations, as discussed toward the end of this review. Furthermore, the application of this strategy in natural product synthesis will be presented.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149 Münster, Germany
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2
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Cribari MA, Unger MJ, Martell JD. A Horseradish Peroxidase-Mediator System for Benzylic C-H Activation. ACS Catal 2022; 12:12246-12252. [PMID: 37153120 PMCID: PMC10162642 DOI: 10.1021/acscatal.2c03424] [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] [Indexed: 11/29/2022]
Abstract
Enzyme-mediator systems generate radical intermediates that abstract hydrogen atoms under mild conditions. These systems have been employed extensively for alcohol oxidation, primarily in biomass degradation, but they are underexplored for direct activation of C(sp3)-H bonds in alkyl groups. Here, we combine horseradish peroxidase (HRP), H2O2, and redox mediator N-hydroxyphthalimide (NHPI) for C(sp3)-H functionalization of alkylbenzene-type substrates. The HRP-NHPI system is >10-fold more active than existing enzyme-mediator systems in converting alkylbenzenes to ketones and aldehydes under air, and it operates from 0-50 °C and in numerous aqueous-organic solvent mixtures. The benzylic substrate radical can be trapped through a reaction with NHPI, demonstrating the formation of benzylic products beyond ketones. Furthermore, we demonstrate a one-pot, two-step enzymatic cascade for converting alkylbenzenes to benzylic amines. Overall, the HRP-NHPI system enables the selective benzylic C-H functionalization of diverse substrates under mild conditions using a straightforward procedure.
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Affiliation(s)
- Mario A. Cribari
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI, 53706, USA
| | - Maxwell J. Unger
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI, 53706, USA
| | - Jeffrey D. Martell
- Department of Chemistry, University of Wisconsin–Madison, Madison, WI, 53706, USA
- Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53703, USA
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3
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Ivanov R, Zharkov M, Zlotin SG. UV‐induced C‐H functionalization of alkanes with NO2 in supercritical carbon dioxide medium. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200084] [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)
- Roman Ivanov
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Nazarov laboratory of fine organic synthesis RUSSIAN FEDERATION
| | - Mikhail Zharkov
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Nazarov laboratory of fine organic synthesis RUSSIAN FEDERATION
| | - Sergei G. Zlotin
- N.D.Zelinsky Institute of Organic Chemistry Laboratory of fine organic synthesis Leninsky prosp.House 47 119991 Moscow RUSSIAN FEDERATION
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4
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Catalyst-free nitration of the aliphatic C-H bonds of tertiary β-keto esters with tert-butyl nitrite: access to α-quaternary α-amino acid precursors. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Budnikov AS, Lopat'eva ER, Krylov IB, Segida OO, Lastovko AV, Ilovaisky AI, Nikishin GI, Glinushkin AP, Terent'ev AO. 4-Nitropyrazolin-5-ones as Readily Available Fungicides of the Novel Structural Type for Crop Protection: Atom-Efficient Scalable Synthesis and Key Structural Features Responsible for Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4572-4581. [PMID: 35380816 DOI: 10.1021/acs.jafc.1c07413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of new types of fungicides for agriculture and medicine is highly desirable due to the uprising fungal resistance against commonly used compounds. Herein, 4-substituted-4-nitropyrazolin-5-ones (nitropyrazolones) were proposed as highly active fungicides of the novel structural type. The first scalable and practical method for the nitropyrazolone synthesis was proposed, which is atom-efficient, is applicable for the multigram scale synthesis, and allows for production of a wide variety of nitropyrazolones with high yields and purity. The synthesized compounds demonstrated high fungicidal activity against the broad spectrum of phytopathogenic fungi (Venturia inaequalis, Rhizoctonia solani, Fusarium oxysporum, Fusarium moniliforme, Bipolaris sorokiniana, and Sclerotinia sclerotiorum). Their mycelium growth inhibiting activity was comparable or superior to that of kresoxim-methyl. In vitro activity against Staphyloccocus aureus, Candida albicans, and Aspergillus niger revealed that nitropyrazolones are promising candidates against human pathogens. The key factors for the manifestation of high fungicidal activity were established to be an aromatic substituent on the N1 atom and small substituents, such as methyl, at the C3 and C4 positions of the pyrazolone ring.
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Affiliation(s)
- Alexander S Budnikov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
| | - Elena R Lopat'eva
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
| | - Oleg O Segida
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
| | - Andrey V Lastovko
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Alexey I Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
| | - Gennady I Nikishin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
| | - Alexey P Glinushkin
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Prosp., 119991 Moscow, Russian Federation
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region 143050, Russian Federation
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6
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Wang H, Jiang H, Wang Y, Qu S, Guo X. A Carbon‐Based Solid Acid Catalyst Prepared through a One‐Step Hydrothermal Carbonization: Efficient Catalysts for Liquid‐Phase Nitrification. ChemistrySelect 2021. [DOI: 10.1002/slct.202101728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hefang Wang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Hui Jiang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Yuanyuan Wang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
| | - Shasha Qu
- Research Development Hangzhou Oxygen Plant Group Co., LTD. Zhejiang 310014 P. R. China
| | - Xiaojun Guo
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 P. R. China
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7
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Qiu X, Wang Y, Su L, Jin R, Song S, Qin Q, Li J, Zong B, Jiao N. Selective
Carbon‐Carbon
Bond Amination with
Redox‐Active
Aminating Reagents: A Direct Approach to Anilines
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Yachong Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Lingyu Su
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Rui Jin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
- State Key Laboratory of Catalytic Materials and Reaction Engineering Research Institute of Petroleum Processing, SINOPEC 100083 Beijing China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Qixue Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Junhua Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
| | - Baoning Zong
- State Key Laboratory of Catalytic Materials and Reaction Engineering Research Institute of Petroleum Processing, SINOPEC 100083 Beijing China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences Peking University Beijing 100191 China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes East China Normal University Shanghai 200062 China
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8
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Kato T, Maruoka K. Design of Bowl‐Shaped
N
‐Hydroxyimide Derivatives as New Organoradical Catalysts for Site‐Selective C(sp
3
)−H Bond Functionalization Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003982] [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)
- Terumasa Kato
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
- Department of Chemistry Graduate School of Science Kyoto University Sakyo Kyoto 606-8502 Japan
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
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9
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Kato T, Maruoka K. Design of Bowl‐Shaped
N
‐Hydroxyimide Derivatives as New Organoradical Catalysts for Site‐Selective C(sp
3
)−H Bond Functionalization Reactions. Angew Chem Int Ed Engl 2020; 59:14261-14264. [DOI: 10.1002/anie.202003982] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/26/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Terumasa Kato
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou 510006 China
- Department of Chemistry Graduate School of Science Kyoto University Sakyo Kyoto 606-8502 Japan
- Graduate School of Pharmaceutical Sciences Kyoto University Sakyo Kyoto 606-8501 Japan
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10
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Wang H, Li X, Wang Y, Yang Y, Jia L, Wang Y. One‐Pot Synthesis of Carbon‐Based Solid Acid Polymer Catalyst: Efficient Catalysts for Liquid‐Phase Nitration of Alkanes. ChemistrySelect 2020. [DOI: 10.1002/slct.202000750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hefang Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
| | - Xuehan Li
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
| | - Yuanyuan Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
| | - Yongfang Yang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
| | - Liyuan Jia
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
| | - Yanji Wang
- School of Chemical Engineering and TechnologyHebei University of Technology Tianjin 300130 P. R. China
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11
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Yoshii T, Tsuzuki S, Sakurai S, Sakamoto R, Jiang J, Hatanaka M, Matsumoto A, Maruoka K. N-Hydroxybenzimidazole as a structurally modifiable platform for N-oxyl radicals for direct C-H functionalization reactions. Chem Sci 2020; 11:5772-5778. [PMID: 32832053 PMCID: PMC7416693 DOI: 10.1039/d0sc02134b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/16/2020] [Indexed: 11/21/2022] Open
Abstract
A novel class of N-oxy radicals based on flexibly modifiable N-hydroxybenzimidazole skeleton was designed and applied to C–H functionalization reactions.
Methods for direct functionalization of C–H bonds mediated by N-oxyl radicals constitute a powerful tool in modern organic synthesis. While several N-oxyl radicals have been developed to date, the lack of structural diversity for these species has hampered further progress in this field. Here we designed a novel class of N-oxyl radicals based on N-hydroxybenzimidazole, and applied them to the direct C–H functionalization reactions. The flexibly modifiable features of these structures enabled facile tuning of their catalytic performance. Moreover, with these organoradicals, we have developed a metal-free approach for the synthesis of acyl fluorides via direct C–H fluorination of aldehydes under mild conditions.
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Affiliation(s)
- Tomomi Yoshii
- Department of Chemistry , Graduate School of Science , Kyoto University , Sakyo , Kyoto 606-8502 , Japan .
| | - Saori Tsuzuki
- Department of Chemistry , Graduate School of Science , Kyoto University , Sakyo , Kyoto 606-8502 , Japan .
| | - Shunya Sakurai
- Department of Chemistry , Graduate School of Science , Kyoto University , Sakyo , Kyoto 606-8502 , Japan .
| | - Ryu Sakamoto
- Department of Chemistry , Graduate School of Science , Kyoto University , Sakyo , Kyoto 606-8502 , Japan .
| | - Julong Jiang
- Institute for Research Initiatives , Division for Research Strategy , Graduate School of Materials Science , Data Science Center , Nara Institute of Science and Technology , Ikoma , Nara 630-0192 , Japan
| | - Miho Hatanaka
- Institute for Research Initiatives , Division for Research Strategy , Graduate School of Materials Science , Data Science Center , Nara Institute of Science and Technology , Ikoma , Nara 630-0192 , Japan.,PRESTO , Japan Science and Technology (JST) , 4-1-8 Honcho , Kawaguchi , Saitama 332-0012 , Japan
| | - Akira Matsumoto
- Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo , Kyoto 606-8501 , Japan
| | - Keiji Maruoka
- Department of Chemistry , Graduate School of Science , Kyoto University , Sakyo , Kyoto 606-8502 , Japan . .,Graduate School of Pharmaceutical Sciences , Kyoto University , Sakyo , Kyoto 606-8501 , Japan.,School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
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12
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Vo QV, Van Gon T, Van Bay M, Mechler A. Antioxidant Activities of Monosubstituted Indolinonic Hydroxylamines: A Thermodynamic and Kinetic Study. J Phys Chem B 2019; 123:10672-10679. [DOI: 10.1021/acs.jpcb.9b08912] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Quan V. Vo
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
| | - Tran Van Gon
- Hue University of Sciences − Hue University, 77 Nguyen Hue, Hue City 530000, Vietnam
| | - Mai Van Bay
- Department of Chemistry, The University of Da Nang - University of Science and Education, Da Nang 550000, Vietnam
| | - Adam Mechler
- Department of Chemistry and Physics, La Trobe University, Bundoora, Victoria 3086, Australia
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13
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Liu M, Zhang Z, Song J, Liu S, Liu H, Han B. Nitrogen Dioxide Catalyzed Aerobic Oxidative Cleavage of C(OH)–C Bonds of Secondary Alcohols to Produce Acids. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908788] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mingyang Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Jinliang Song
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Shuaishuai Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Buxing Han
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
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14
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Liu M, Zhang Z, Song J, Liu S, Liu H, Han B. Nitrogen Dioxide Catalyzed Aerobic Oxidative Cleavage of C(OH)–C Bonds of Secondary Alcohols to Produce Acids. Angew Chem Int Ed Engl 2019; 58:17393-17398. [DOI: 10.1002/anie.201908788] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/05/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Mingyang Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Zhanrong Zhang
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
| | - Jinliang Song
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Shuaishuai Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
| | - Buxing Han
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Colloid and Interface and ThermodynamicsCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of Sciences Zhongguancun North First Street 2 100190 Beijing P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Physical Science LaboratoryHuairou National Comprehensive Science Center No. 5 Yanqi East Second Street Beijing 101400 China
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15
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Vo QV, Van Bay M, Nam PC, Mechler A. Is Indolinonic Hydroxylamine a Promising Artificial Antioxidant? J Phys Chem B 2019; 123:7777-7784. [PMID: 31462046 DOI: 10.1021/acs.jpcb.9b05160] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Indolinonic hydroxylamine (IH) is a new-generation artificial antioxidant that, due to its ability to fractionate into apolar environments, is considered for prevention against lipid peroxidation. For this reason, it is important to understand, and compare, its activity in polar and nonpolar environments. In this study, the antioxidant activity of IH has been evaluated against HO• and HOO• radicals in water and, for a lipid-mimetic environment, pentyl ethanoate solvent, using kinetic calculations. It was found that the overall reaction rate constant of the HO• radical scavenging is more than 7 times higher in aqueous (8.98 × 109 M-1 s-1) than in apolar (1.22 × 109 M-1 s-1) media. However, HOO• scavenging was 35 times faster in apolar media (1.00 × 105 M-1 s-1 vs 2.80 × 103 M-1 s-1). In a lipid environment, the HAT mechanism was favored for the antioxidant activity for both radical species, whereas in aqueous solution the SET mechanism defined the HO• scavenging, while HAT described the HOO• scavenging. IH was shown to be one of the most active antioxidants in lipid environment, an essential characteristic for the protection of biological systems.
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Affiliation(s)
- Quan V Vo
- Department for Management of Science and Technology Development , Ton Duc Thang University , Ho Chi Minh City 700000 , Vietnam.,Faculty of Applied Sciences , Ton Duc Thang University , Ho Chi Minh City 700000 , Vietnam
| | - Mai Van Bay
- Department of Chemistry , The University of Da Nang-University of Science and Education , Da Nang 550000 , Vietnam
| | - Pham Cam Nam
- Department of Chemical Engineering , The University of Da Nang, University of Science and Technology , Da Nang 550000 , Vietnam
| | - Adam Mechler
- Department of Chemistry and Physics , La Trobe University , Melbourne , Victoria 3086 , Australia
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16
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Solov’ev ME, Kurganova EA, Frolov AS, Koshel’ GN. Correlation between the Thermodynamic and Kinetic Parameters of the Oxidation Reactions of Substituted Mononuclear Arenes in the Presence of N-Hydroxyphthalimide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419030191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Matsumoto Y, Kuriyama M, Yamamoto K, Nishida K, Onomura O. Metal-Free Synthesis of Adipic Acid via Organocatalytic Direct Oxidation of Cyclohexane under Ambient Temperature and Pressure. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yohei Matsumoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Koyo Nishida
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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18
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Affiliation(s)
- Roberto Ballini
- Green Chemistry Group, School of Sciences and Technology; Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC) Italy
| | - Alessandro Palmieri
- Green Chemistry Group, School of Sciences and Technology; Chemistry Division; University of Camerino; Via S. Agostino n. 1 62032 Camerino (MC) Italy
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19
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Gunchenko PA, Li J, Liu B, Chen H, Pashenko AE, Bakhonsky VV, Zhuk TS, Fokin AA. Aerobic oxidations with N -hydroxyphthalimide in trifluoroacetic acid. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Ni J, Ozawa J, Oisaki K, Kanai M. Directing activator-assisted regio- and oxidation state-selective aerobic oxidation of secondary C(sp(3))-H bonds in aliphatic alcohols. Org Biomol Chem 2018; 14:4378-81. [PMID: 27109464 DOI: 10.1039/c6ob00678g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The regioselective conversion of an unactivated C(sp(3))-H bond of a methylene carbon (CH2) into a C-O single bond is an attractive reaction in organic synthesis. Herein, we present a strategy for a regio- and oxidation state-selective aerobic C-H oxidation based on an N-hydroxyamide-derived directing activator (DA), which is attached to a hydroxy group in alcohol substrates. The DA reacts with NOx species generated in situ from NaNO2, a Brønsted acid, and aerobic oxygen, and effectively generates an amidoxyl radical from the N-hydroxy moiety of the DA. Then, the amidoxyl radical promotes site-selective intramolecular C-H abstraction from methylenes with γ- (or δ-) selectivity. The thus-generated methylene radicals are trapped by molecular oxygen and NO. This process results in the predominant formation of nitrate esters as products, which suppresses undesired overoxidation. The products can be easily converted into alcohols after hydrogenolysis.
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Affiliation(s)
- Jizhi Ni
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan. and Japan Science Technology Agency (JST), ERATO Kanai Life Science Catalysis Project, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan
| | - Jun Ozawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Kounosuke Oisaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan. and Japan Science Technology Agency (JST), ERATO Kanai Life Science Catalysis Project, 7-3-1 Bunkyo-ku, Tokyo 113-0033, Japan
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21
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Zhang QQ, Dong J, Liu YM, Cao Y, He HY, Wang YD. An efficient noble-metal-free supported copper catalyst for selective nitrocyclohexane hydrogenation to cyclohexanone oxime. Chem Commun (Camb) 2017; 53:2930-2933. [PMID: 28220164 DOI: 10.1039/c6cc10267k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It was shown for the first time that cyclohexanone oxime (CHO) can be selectively produced by heterogeneous copper-catalyzed hydrogenative transformation of nitrocyclohexane (NC). The combination of Cu0 and Cu+ and their cooperative interaction with weakly acidic SiO2 supports elicited a significantly unique and selective catalysis in the hydrogenation of NC to CHO.
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Affiliation(s)
- Qian-Qian Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Jing Dong
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China. and SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, P. R. China.
| | - Yong-Mei Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Yong Cao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
| | - He-Yong He
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Yang-Dong Wang
- SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, P. R. China.
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22
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Zhang ZQ, Chen T, Zhang FM. Copper-Assisted Direct Nitration of Cyclic Ketones with Ceric Ammonium Nitrate for the Synthesis of Tertiary α-Nitro-α-substituted Scaffolds. Org Lett 2017; 19:1124-1127. [DOI: 10.1021/acs.orglett.7b00040] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhi-Qiang Zhang
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Tao Chen
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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23
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Yan X, Zhang L, Liu Q, Wang G, Liu X, Yang W. A novel radical polymerization system initiated by a redox reaction with NHPI and xanthone. Polym Chem 2017. [DOI: 10.1039/c7py01329a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel redox reaction system consisting of xanthone (XT) andN-hydroxyphthalimide (NHPI) for radical polymerization is developed where NHPI and XT experience a one-electron-transfer reaction, which produces two kinds of radicals, PINO radicals and cycloketyl (CK) radicals.
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Affiliation(s)
- Xu Yan
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
| | - Lihua Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
| | - Qian Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
| | - Guan Wang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
| | - Xiaofei Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- Beijing Laboratory of Biomedical Materials
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24
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Zhou Y, Tang Z, Song Q. Co-catalyzed highly selective C(sp3)–H nitration. Chem Commun (Camb) 2017; 53:8972-8975. [DOI: 10.1039/c7cc04433j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Co-catalyzed highly selective C(sp3)–H nitration via a radical pathway was disclosed, overcoming the strong coordination effect of pyrimidine by suppressing C(sp2)–H functionalization as well as proximity C(sp3)–H functionalization.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Zhonghe Tang
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
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25
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Luo J, Zhang J. Aerobic Oxidation of Olefins and Lignin Model Compounds Using Photogenerated Phthalimide-N-oxyl Radical. J Org Chem 2016; 81:9131-9137. [DOI: 10.1021/acs.joc.6b01704] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jian Luo
- Department of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
| | - Jian Zhang
- Department of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
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26
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Hu Y, Chen L, Li B. NHPI/tert-butyl nitrite: A highly efficient metal-free catalytic system for aerobic oxidation of alcohols to carbonyl compounds using molecular oxygen as the terminal oxidant. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.05.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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27
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Liu S, You K, Jian J, Zhao F, Zhong W, Yin D, Liu P, Ai Q, Luo H. Mesoporous silica gel as an effective and eco-friendly catalyst for highly selective preparation of cyclohexanone oxime by vapor phase oxidation of cyclohexylamine with air. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Liu S, You K, Jian J, Luo Q, Liu P, Ai Q, Luo H. A simple and efficient approach for highly selective preparation of nitrocyclohexane from cyclohexane with tert-butyl nitrite catalyzed by N-hydroxyphthalimide. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2144-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Zhang W, Ren S, Zhang J, Liu Y. Palladium-Catalyzed sp3 C–H Nitration of 8-Methylquinolines. J Org Chem 2015; 80:5973-8. [DOI: 10.1021/acs.joc.5b00735] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Wei Zhang
- State Key
Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Shaobo Ren
- State Key
Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Jian Zhang
- State Key
Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Yunkui Liu
- State Key
Laboratory Breeding
Base of Green Chemistry-Synthesis Technology, College of Chemical
Engineering, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
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30
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Zhong W, Mao L, Yi W, Zou G, Li Y, Yin D. Highly efficient light-driven HNO3 nitration–oxidation of cyclohexane to co-product nitrocyclohexane and adipic acid in a biphasic system. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2030-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Wu D, Zhang J, Cui J, Zhang W, Liu Y. AgNO2-mediated direct nitration of the quinoxaline tertiary benzylic C–H bond and direct conversion of 2-methyl quinoxalines into related nitriles. Chem Commun (Camb) 2014; 50:10857-60. [DOI: 10.1039/c4cc01327a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A unique method for AgNO2-mediated direct nitration of the quinoxaline tertiary C–H bond and direct conversion of 2-methyl quinoxalines into 2-quinoxaline nitriles under oxidative conditions has been developed.
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Affiliation(s)
- Degui Wu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014, P. R. China
| | - Jian Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014, P. R. China
| | - Jianhai Cui
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014, P. R. China
| | - Wei Zhang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014, P. R. China
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou 310014, P. R. China
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32
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Liu PL, Zhang HK, Liu SH, Yao ZJ, Hao F, Liao HG, You KY, Luo HA. Palladium Supported Catalysts for Nitrocyclohexane Hydrogenation to Cyclohexanone Oxime with High Selectivity. ChemCatChem 2013. [DOI: 10.1002/cctc.201300377] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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Melone L, Punta C. Metal-free aerobic oxidations mediated by N-hydroxyphthalimide. A concise review. Beilstein J Org Chem 2013; 9:1296-310. [PMID: 23843925 PMCID: PMC3701383 DOI: 10.3762/bjoc.9.146] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 06/12/2013] [Indexed: 01/20/2023] Open
Abstract
Since the beginning of the century, N-hydroxyphthalimide and related compounds have been revealed to be efficient organocatalysts for free-radical processes and have found ample application in promoting the aerobic oxidation of a wide range of organic substrates. When combined with different co-catalysts, they are activated to the corresponding N-oxyl radical species and become able to promote radical chains, involving molecular oxygen, directly or indirectly. Most of the examples reported in the literature describe the use of these N-hydroxy derivatives in the presence of transition-metal complexes. However, eco-friendly standards, including the demand for highly selective transformations, impose the development of metal-free processes, especially for large-scale productions, as in the case of the oxygenation of hydrocarbons. For this reason, many efforts have been devoted in the past decade to the design of new protocols for the activation of N-hydroxy imides in the presence of nonmetal initiators. Herein we provide a concise overview of the most significant and successful examples in this field, with the final aim to furnish a useful instrument for all scientists actively involved in the O2-mediated selective oxidation of organic compounds and looking for environmentally safe alternatives to metal catalysis.
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Affiliation(s)
- Lucio Melone
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza L. Da Vinci 32, Milano 20131, Italy ; INSTM, National Consortium of Materials Science and Technology, Local Unit Politecnico di Milano, Italy
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34
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Chen K, Jia L, Dao R, Yao J, Wang C, Chen Z, Li H. Theoretical Studies on Muti-Hydroxyimides as Highly Efficient Catalysts for Aerobic Oxidation. Chemphyschem 2012. [DOI: 10.1002/cphc.201200865] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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You K, Jian J, Xiao H, Liu P, Ai Q, Luo H. Highly selective co-production of nitrocyclohexane and adipic acid from vapor phase catalytic nitration–oxidation of cyclohexane with NO2. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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36
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Liao HG, Xiao YJ, Zhang HK, Liu PL, You KY, Wei C, Luo H. Hydrogenation of nitrocyclohexane to cyclohexanone oxime over Pd/CNT catalyst under mild conditions. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2011.12.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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37
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Iasco O, Novitchi G, Jeanneau E, Tommasino JB, Roques N, Luneau D. Versatile chemical transformations of benzoxazole based ligands on complexation with 3d-metal ions. Inorg Chem 2012; 51:2588-96. [PMID: 22233278 DOI: 10.1021/ic202493z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two benzoxazoles derivative ligands were synthesized from the condensation of 3,5-di-tert-butyl-o-benzoquinone (DTBBQ) with ethanolamine or 1,3-diamino-2-hydroxypropane in methanol. Condensation of DTBBQ with ethanolamine gives the expected 5,7-di-tert-butyl-2-methylenhydroxylbenzoxazole (HL1) while with 1,3-diamino-2-hydroxypropane it gives (2-hydroxyethyl-2-{2,4-bis(1,1-dimethylethyl)-1-phenol-6 amino}-2{5,7-di-tert-butyl-benzoxazole}) (H(2)L2) with only one benzoxazole ring instead of the symmetric bis-benzoxazole derivative. The structure of HL1 and H(2)L2 were confirmed by NMR-spectroscopy and X-ray diffraction on a single crystal for HL1. The reaction of HL1 with CuCl(2) gives a mononuclear [Cu(II)(HL1)(2)Cl(2)] (1) complex for which the crystal structure shows that HL1 is preserved. In contrast, upon reaction with nickel(II), cobalt(II), and manganese(II) H(2)L2 is further oxidized and transformed in new ligands HL3 in mononuclear complexes [M(II)(L3)(2)] (M = Ni(II) (2); M = Co(II) (3)) and H(2)L4 in tetranuclear complex [Mn(II)(4)(HL4)(4)Cl(4)] (4) as found from the crystal structures of complexes 2-4. Electrochemical studies for complexes 2 and 3 evidence complicated redox properties. [Mn(II)(4)(HL4)(4)Cl(4)] (4) has a cubane-like structure with a "4 + 2" fashion The magnetic susceptibility of 4 is well fitted considering one Mn---Mn interaction J(a)(Mn(II)-Mn(II)) = -0.50(1) cm(-1) with g = 2.00(7).
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Affiliation(s)
- Olga Iasco
- Laboratoire des Multimatériaux et Interfaces (UMR 5615), Université Claude Bernard Lyon 1, 69622 Villeurbanne Cedex, France
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38
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Han B, Han RF, Ren YW, Duan XY, Xu YC, Zhang W. Efficient aerobic oxidative dehydrogenation of dihydropyrimidinones and dihydropyrimidines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.105] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Shimizu KI, Yamamoto T, Tai Y, Satsuma A. Selective hydrogenation of nitrocyclohexane to cyclohexanone oxime by alumina-supported gold cluster catalysts. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcata.2011.05.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Zhang P, Wang C, Chen Z, Li H. Acetylacetone–metal catalyst modified by pyridinium salt group applied to the NHPI-catalyzed oxidation of cholesteryl acetate. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00186h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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QIN J, FU Z, LIU Y, HE X, ZHANG D, WU W, WANG Y, GONG X, DENG X, WU H, ZOU Y, YU N, YIN D. Aerobic Oxidation of Ethylbenzene Co-catalyzed by N-Hydroxyphthalimide and Oxobis(8-Quinolinolato) Vanadium (IV) Complexes. CHINESE JOURNAL OF CATALYSIS 2011. [DOI: 10.1016/s1872-2067(10)60255-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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42
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Yang X, Wang Y, Zhang C, Fang T, Zhou L, Zhang W, Xu J. Steric effects of substituents of quinones on the oxygenation of ethylbenzene catalyzed by NHPI/quinone and the catalytic oxidation of ascorbate. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1810] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Shiri M, Zolfigol MA, Kruger HG, Tanbakouchian Z. Advances in the application of N2O4/NO2 in organic reactions. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.057] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Catalytic alkylation of benzylic C–H bonds with 1,3-dicarbonyl compounds utilizing oxygen as terminal oxidant. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2009.12.080] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Yang X, Zhou L, Chen Y, Chen C, Su Y, Miao H, Xu J. A promotion effect of alkaline-earth chloride on N-hydroxyphthalimide-catalyzed aerobic oxidation of hydrocarbons. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2009.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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46
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Coseri S. Phthalimide‐N‐oxyl (PINO) Radical, a Powerful Catalytic Agent: Its Generation and Versatility Towards Various Organic Substrates. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2009. [DOI: 10.1080/01614940902743841] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Mechanisms of the C-H halogenation of adamantane in the presence of N-hydroxyphthalimide. THEOR EXP CHEM+ 2008. [DOI: 10.1007/s11237-008-9000-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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48
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Nakamura R, Obora Y, Ishii Y. Selective one-pot synthesis of various phenols from diarylethanes. Chem Commun (Camb) 2008:3417-9. [DOI: 10.1039/b804055a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Akhrem I, Orlinkov A. Polyhalomethanes Combined with Lewis Acids in Alkane Chemistry. Chem Rev 2007; 107:2037-79. [PMID: 17488061 DOI: 10.1021/cr970005n] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Irena Akhrem
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova Street, 117813 Moscow, Russia.
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50
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Coseri S. A New and Efficient Heterogeneous System for the PhthalimideN-Oxyl (PINO) Radical Generation. European J Org Chem 2007. [DOI: 10.1002/ejoc.200601072] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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