1
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Misawa-Suzuki T, Nagao H. Ru(IV)-Ru(IV) complexes having the doubly oxido-bridged core with a bridging carbonato or hydrogencarbonato ligand. Dalton Trans 2023; 52:2863-2871. [PMID: 36762568 DOI: 10.1039/d2dt04080h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Ru(IV)-Ru(IV) complexes having the doubly oxido-bridged diamond core with a bridging carbonato or hydrogencarbonato ligand, [{RuIV(ebpma)}2(μ-O)2(μ-O2CO(H)m)]Xn (ebpma; ethylbis(2-pyridylmethyl)amine, m = 0; [IV,IV]X2 (X = PF6, ClO4), m = 1; [IV,IV_1H](ClO4)3), were isolated via the oxidation of the corresponding carbonato-bridged Ru(III)-Ru(IV) complex ([III,IV]+), and "[IV,IV](ClO4)2 and [IV,IV_1H](ClO4)3" were structurally characterized. The electrochemical and spectroscopic properties of [IV,IV]2+ and [IV,IV_1H]3+ were investigated both in organic solvents and aqueous solutions. The reactivity toward organic solvents having (a) methyl group(s) and reactions with organic substrates were studied as well. This should be the first time when systematic comparisons of the Ru(IV)-Ru(IV) species and corresponding Ru(III)-Ru(IV) complexes in the same tridentate ligand system were made.
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Affiliation(s)
- Tomoyo Misawa-Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Hirotaka Nagao
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho Chiyoda-ku, Tokyo 102-8554, Japan.
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2
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Liang H, Wang J. Enantioselective C-H Bond Functionalization Involving Arene Ruthenium(II) Catalysis. Chemistry 2023; 29:e202202461. [PMID: 36300688 DOI: 10.1002/chem.202202461] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 12/14/2022]
Abstract
The p-Cymene ruthenium(II) complex is one of the most widely used catalysts in C-H activation. However, enantioselective C-H activation promoted by arene ruthenium(II) complexes has not been realized until recently. The revealed strategies include intramolecular nitrene C-H insertion, the use of chiral transient directing groups, chiral carboxylic acid, relay catalysis, and chiral arene ligands. In this minireview, these advances are summarized and discussed in the hope of spurring further developments.
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Affiliation(s)
- Hao Liang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.,Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jun Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.,Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
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3
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Masferrer-Rius E, Li F, Lutz M, Klein Gebbink RJM. Exploration of highly electron-rich manganese complexes in enantioselective oxidation catalysis; a focus on enantioselective benzylic oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01642c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of highly electron-rich manganese complexes for enantioselective benzylic oxidation (and asymmetric epoxidation) is described, to provide chiral benzylic alcohols and epoxides in good yields and enantioselectivites.
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Affiliation(s)
- Eduard Masferrer-Rius
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Fanshi Li
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Martin Lutz
- Structural Biochemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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4
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Sun Q, Sun W. Catalytic Enantioselective Methylene C(sp 3)-H Hydroxylation Using a Chiral Manganese Complex/Carboxylic Acid System. Org Lett 2020; 22:9529-9533. [PMID: 33300804 DOI: 10.1021/acs.orglett.0c03585] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Achieving direct C-H hydroxylation in a highly diastereo- and enantioselective manner is still a challenging goal. This reaction is mainly hindered by the potential for overoxidation of the generated alcohols as well as low stereoselectivity. Herein, we present an enantioselective benzylic C-H hydroxylation catalyzed by a manganese complex, H2O2, and a carboxylic acid in 2,2,2-trifluoroethanol. The benzylic alcohols were successfully furnished in excellent diastereoselectivities (up to >95:5) and enantioselectivities (up to 95% ee). As a highlight of this work, high diastereoselectivity of C-H hydroxylation could be achieved by tuning the amount of carboxylic acid additive.
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Affiliation(s)
- Qiangsheng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
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5
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Ottenbacher RV, Talsi EP, Bryliakov KP. Highly enantioselective undirected catalytic hydroxylation of benzylic CH2 groups with H2O2. J Catal 2020. [DOI: 10.1016/j.jcat.2020.08.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Chen J, Jiang Z, Fukuzumi S, Nam W, Wang B. Artificial nonheme iron and manganese oxygenases for enantioselective olefin epoxidation and alkane hydroxylation reactions. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213443] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Burg F, Breitenlechner S, Jandl C, Bach T. Enantioselective oxygenation of exocyclic methylene groups by a manganese porphyrin catalyst with a chiral recognition site. Chem Sci 2020; 11:2121-2129. [PMID: 34123300 PMCID: PMC8150113 DOI: 10.1039/c9sc06089h] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The natural enzyme cytochrome P450 is widely recognised for its unique ability to catalyse highly selective oxygen insertion reactions into unactivated C–H bonds under mild conditions. Its exceptional potential for organic synthesis served as an inspiration for the presented biomimetic hydroxylation approach. Via a remote hydrogen bonding motif a high enantioselectivity in the manganese-catalysed oxygenation of quinolone analogues (27 examples, 18–64% yield, 80–99% ee) was achieved. The site-selectivity was completely altered in favour of a less reactive but more accessible position. A Mn porphyrin complex with a remote hydrogen bonding motif induces a high enantioselectivity in the oxygenation of 3-alkylquinolones. Compared to an achiral Mn complex, the site-selectivity was completely altered in favour of less reactive methylene groups.![]()
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Affiliation(s)
- Finn Burg
- Department Chemie, Catalysis Research Center (CRC), Technische Universität München 85747 Garching Germany +49 89 28913315 +49 89 28913330
| | - Stefan Breitenlechner
- Department Chemie, Catalysis Research Center (CRC), Technische Universität München 85747 Garching Germany +49 89 28913315 +49 89 28913330
| | - Christian Jandl
- Department Chemie, Catalysis Research Center (CRC), Technische Universität München 85747 Garching Germany +49 89 28913315 +49 89 28913330
| | - Thorsten Bach
- Department Chemie, Catalysis Research Center (CRC), Technische Universität München 85747 Garching Germany +49 89 28913315 +49 89 28913330
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8
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Qiu B, Xu D, Sun Q, Lin J, Sun W. Manganese-Catalyzed Asymmetric Oxidation of Methylene C–H of Spirocyclic Oxindoles and Dihydroquinolinones with Hydrogen Peroxide. Org Lett 2019; 21:618-622. [DOI: 10.1021/acs.orglett.8b03652] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bin Qiu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daqian Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Qiangsheng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jin Lin
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
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9
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Ottenbacher RV, Talsi EP, Rybalova TV, Bryliakov KP. Enantioselective Benzylic Hydroxylation of Arylalkanes with H
2
O
2
in Fluorinated Alcohols in the Presence of Chiral Mn Aminopyridine Complexes. ChemCatChem 2018. [DOI: 10.1002/cctc.201801476] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Roman V. Ottenbacher
- Novosibirsk State University Novosibirsk 630090 Russia
- Boreskov Institute of Catalysis Novosibirsk 630090 Russia
| | - Evgenii P. Talsi
- Novosibirsk State University Novosibirsk 630090 Russia
- Boreskov Institute of Catalysis Novosibirsk 630090 Russia
| | - Tatyana V. Rybalova
- Novosibirsk State University Novosibirsk 630090 Russia
- Vorozhtsov Novosibirsk Institute of Organic Chemistry Novosibirsk 630090 Russia
| | - Konstantin P. Bryliakov
- Novosibirsk State University Novosibirsk 630090 Russia
- Boreskov Institute of Catalysis Novosibirsk 630090 Russia
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10
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Milan M, Bietti M, Costas M. Enantioselective aliphatic C-H bond oxidation catalyzed by bioinspired complexes. Chem Commun (Camb) 2018; 54:9559-9570. [PMID: 30039814 DOI: 10.1039/c8cc03165g] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Enantioselective aliphatic C-H bond oxidation simultaneously installs functionality and chirality into hydrocarbon units, converting in a single step readily available, inexpensive and typically inert hydrocarbons into precious building blocks for organic synthesis. The reaction remains however an open problem eager for catalyst development and improvement. Metal complexes reproducing structural and reactivity aspects of oxygenases are emerging as promising homogeneous catalysts for this class of reactions. The present work reviews the current status of field, analyzing the difficulties of the reaction, discussing principles of catalyst design, and critically highlighting the limitations of the current state-of-the-art methodologies.
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Affiliation(s)
- Michela Milan
- QBIS Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain.
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11
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Fang K, Li G, She Y. Metal-Free Aerobic Oxidation of Nitro-Substituted Alkylarenes to Carboxylic Acids or Benzyl Alcohols Promoted by NaOH. J Org Chem 2018; 83:8092-8103. [PMID: 29905478 DOI: 10.1021/acs.joc.8b00903] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Efficient and selective aerobic oxidation of nitro-substituted alkylarenes to functional compounds is a fundamental process that remains a challenge. Here, we report a metal-free, efficient, and practical approach for the direct and selective aerobic oxidation of nitro-substituted alkylarenes to carboxylic acids or benzyl alcohols. This sustainable system uses O2 as clean oxidant in a cheap and green NaOH/EtOH mixture. The position and type of substituent critically affect the products. In addition, this sustainable protocol enabled gram-scale preparation of carboxylic acid and benzyl alcohol derivatives with high chemoselectivities. Finally, the reactions can be conducted in a pressure reactor, which can conserve oxygen and prevent solvent loss. The approach was conducive to environmental protection and potential industrial application.
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Affiliation(s)
- Kun Fang
- College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Guijie Li
- College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Yuanbin She
- College of Chemical Engineering , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
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12
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Petrosyan A, Hauptmann R, Pospech J. Heteroarene N
-Oxides as Oxygen Source in Organic Reactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800152] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andranik Petrosyan
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
| | - Richy Hauptmann
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
| | - Jola Pospech
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.; Albert-Einstein-Str. 29a 18057 Rostock Germany
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13
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Shing KP, Cao B, Liu Y, Lee HK, Li MD, Phillips DL, Chang XY, Che CM. Arylruthenium(III) Porphyrin-Catalyzed C-H Oxidation and Epoxidation at Room Temperature and [Ru V(Por)(O)(Ph)] Intermediate by Spectroscopic Analysis and Density Functional Theory Calculations. J Am Chem Soc 2018; 140:7032-7042. [PMID: 29781605 DOI: 10.1021/jacs.8b04470] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of highly active and selective metal catalysts for efficient oxidation of hydrocarbons and identification of the reactive intermediates in the oxidation catalysis are long-standing challenges. In the rapid hydrocarbon oxidation catalyzed by ruthenium(IV) and -(III) porphyrins, the putative Ru(V)-oxo intermediates remain elusive. Herein we report that arylruthenium(III) porphyrins are highly active catalysts for hydrocarbon oxidation. Using catalyst [RuIII(TDCPP)(Ph)(OEt2)] (H2TDCPP = 5,10,15,20-tetrakis(2,6-dichlorophenyl)porphyrin), the oxidation of C-H bonds of various hydrocarbons with oxidant m-CPBA at room temperature gave alcohols/ketones in up to 99% yield within 1 h; use of [ nBu4N]IO4 as a mild alternative oxidant avoided formation of lactone from cyclic ketone in C-H oxidation, and the catalytic epoxidation with up to 99% yield and high selectivity (no aldehydes as side product) was accomplished within 5 min. UV-vis, electrospray ionization-mass spectrometry, resonance Raman, electron paramagnetic resonance, and kinetic measurements and density functional theory calculations lend evidence for the formation of Ru(V)-oxo intermediate [RuV(TDCPP)(O)(Ph)].
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Affiliation(s)
- Ka-Pan Shing
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Bei Cao
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Yungen Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Hung Kay Lee
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, New Territories, Hong Kong , China
| | - Ming-De Li
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - David Lee Phillips
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Xiao-Yong Chang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Chi-Ming Che
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China.,HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053 , China
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14
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Qiu B, Xu D, Sun Q, Miao C, Lee YM, Li XX, Nam W, Sun W. Highly Enantioselective Oxidation of Spirocyclic Hydrocarbons by Bioinspired Manganese Catalysts and Hydrogen Peroxide. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03601] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bin Qiu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daqian Xu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Qiangsheng Sun
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chengxia Miao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yong-Min Lee
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Xiao-Xi Li
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wonwoo Nam
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wei Sun
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for
Excellence in Molecular Synthesis, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
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15
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Burg F, Gicquel M, Breitenlechner S, Pöthig A, Bach T. Katalytische, positions- und enantioselektive C-H-Oxygenierung durch einen chiralen Mangan-Porphyrin-Komplex mit einer entfernten Bindungsstelle. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712340] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Finn Burg
- Fakultät für Chemie und Zentralinstitut für Katalyseforschung; Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Maxime Gicquel
- Fakultät für Chemie und Zentralinstitut für Katalyseforschung; Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Stefan Breitenlechner
- Fakultät für Chemie und Zentralinstitut für Katalyseforschung; Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Alexander Pöthig
- Fakultät für Chemie und Zentralinstitut für Katalyseforschung; Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
| | - Thorsten Bach
- Fakultät für Chemie und Zentralinstitut für Katalyseforschung; Technische Universität München; Lichtenbergstraße 4 85747 Garching Deutschland
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16
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Burg F, Gicquel M, Breitenlechner S, Pöthig A, Bach T. Site- and Enantioselective C−H Oxygenation Catalyzed by a Chiral Manganese Porphyrin Complex with a Remote Binding Site. Angew Chem Int Ed Engl 2018; 57:2953-2957. [DOI: 10.1002/anie.201712340] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Finn Burg
- Department Chemie and Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Maxime Gicquel
- Department Chemie and Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Stefan Breitenlechner
- Department Chemie and Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Alexander Pöthig
- Department Chemie and Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC); Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
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17
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Talsi EP, Samsonenko DG, Ottenbacher RV, Bryliakov KP. Highly Enantioselective C−H Oxidation of Arylalkanes with H2
O2
in the Presence of Chiral Mn-Aminopyridine Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201701169] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Evgenii P. Talsi
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Boreskov Institute of Catalysis; Pr. Lavrentieva 5 Novosibirsk 630090 Russian Federation
| | - Denis G. Samsonenko
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Nikolaev Institute of Inorganic Chemistry; Pr. Lavrentieva 3 Novosibirsk 630090 Russian Federation
| | - Roman V. Ottenbacher
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Boreskov Institute of Catalysis; Pr. Lavrentieva 5 Novosibirsk 630090 Russian Federation
| | - Konstantin P. Bryliakov
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Boreskov Institute of Catalysis; Pr. Lavrentieva 5 Novosibirsk 630090 Russian Federation
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18
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Milan M, Bietti M, Costas M. Highly Enantioselective Oxidation of Nonactivated Aliphatic C-H Bonds with Hydrogen Peroxide Catalyzed by Manganese Complexes. ACS CENTRAL SCIENCE 2017; 3:196-204. [PMID: 28386597 PMCID: PMC5364455 DOI: 10.1021/acscentsci.6b00368] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Indexed: 05/21/2023]
Abstract
Monosubstituted cycloalkanes undergo regio- and enantioselective aliphatic C-H oxidation with H2O2 catalyzed by biologically inspired manganese catalysts. The reaction furnishes the corresponding ketones resulting from oxidation at C3 and C4 methylenic sites (K3 and K4, respectively) leading to a chiral desymmetrization that proceeds with remarkable enantioselectivity (64% ee) but modest regioselectivity at C3 (K3/K4 ≈ 2) for tert-butylcyclohexane, and with up to 96% ee and exquisite regioselectity toward C3 (up to K3/K4 > 99) when N-cyclohexylalkanamides are employed as substrates. Efficient H2O2 activation, high yield, and highly enantioselective C-H oxidation rely on the synergistic cooperation of a sterically bulky manganese catalyst and an oxidatively robust alkanoic acid. This represents the first example of nonenzymatic highly enantioselective oxidation of nonactivated methylenic sites. Furthermore, the principles of catalyst design disclosed in this work constitute a unique platform for further development of stereoselective C-H oxidation reactions.
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Affiliation(s)
- Michela Milan
- QBIS Research Group,
Institut de Química Computacional i Catàlisi (IQCC)
and Departament de Química, Universitat
de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - Massimo Bietti
- Dipartimento di
Scienze e Tecnologie Chimiche, Università
“Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
- (M.B.) E-mail:
| | - Miquel Costas
- QBIS Research Group,
Institut de Química Computacional i Catàlisi (IQCC)
and Departament de Química, Universitat
de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
- (M.C.) Tel: +34-972419842. E-mail:
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Barona-Castaño JC, Carmona-Vargas CC, Brocksom TJ, de Oliveira KT. Porphyrins as Catalysts in Scalable Organic Reactions. Molecules 2016; 21:310. [PMID: 27005601 PMCID: PMC6273917 DOI: 10.3390/molecules21030310] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 02/26/2016] [Accepted: 03/01/2016] [Indexed: 01/06/2023] Open
Abstract
Catalysis is a topic of continuous interest since it was discovered in chemistry centuries ago. Aiming at the advance of reactions for efficient processes, a number of approaches have been developed over the last 180 years, and more recently, porphyrins occupy an important role in this field. Porphyrins and metalloporphyrins are fascinating compounds which are involved in a number of synthetic transformations of great interest for industry and academy. The aim of this review is to cover the most recent progress in reactions catalysed by porphyrins in scalable procedures, thus presenting the state of the art in reactions of epoxidation, sulfoxidation, oxidation of alcohols to carbonyl compounds and C–H functionalization. In addition, the use of porphyrins as photocatalysts in continuous flow processes is covered.
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Affiliation(s)
- Juan C Barona-Castaño
- Departamento de Química, Universidade Federal de São Carlos, São Carlos 13565-905, Brazil.
| | | | - Timothy J Brocksom
- Departamento de Química, Universidade Federal de São Carlos, São Carlos 13565-905, Brazil.
| | - Kleber T de Oliveira
- Departamento de Química, Universidade Federal de São Carlos, São Carlos 13565-905, Brazil.
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Ishizuka T, Kotani H, Kojima T. Characteristics and reactivity of ruthenium–oxo complexes. Dalton Trans 2016; 45:16727-16750. [DOI: 10.1039/c6dt03024f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this perspective, we have surveyed the synthetic procedure, characteristics, and reactivity of high-valent ruthenium–oxo complexes.
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Affiliation(s)
| | - Hiroaki Kotani
- Department of Chemistry
- University of Tsukuba
- Tsukuba
- Japan
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Chmielewski PJ, Siczek M, Stępień M. Bis(N-Confused Porphyrin) as a Semirigid Receptor with a Chirality Memory: A Two-Way Host Enantiomerization through Point-to-Axial Chirality Transfer. Chemistry 2014; 21:2547-59. [DOI: 10.1002/chem.201405598] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Indexed: 11/12/2022]
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Frost JR, Huber SM, Breitenlechner S, Bannwarth C, Bach T. Enantiotopos-selektive CH-Oxygenierung mit einem supramolekularen Ruthenium-Katalysator. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409224] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Frost JR, Huber SM, Breitenlechner S, Bannwarth C, Bach T. Enantiotopos-Selective CH Oxygenation Catalyzed by a Supramolecular Ruthenium Complex. Angew Chem Int Ed Engl 2014; 54:691-5. [DOI: 10.1002/anie.201409224] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Indexed: 11/12/2022]
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24
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Doble MV, Ward AC, Deuss PJ, Jarvis AG, Kamer PC. Catalyst design in oxidation chemistry; from KMnO4 to artificial metalloenzymes. Bioorg Med Chem 2014; 22:5657-77. [DOI: 10.1016/j.bmc.2014.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 06/27/2014] [Accepted: 07/01/2014] [Indexed: 01/07/2023]
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25
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Zheng C, You SL. Recent development of direct asymmetric functionalization of inert C–H bonds. RSC Adv 2014. [DOI: 10.1039/c3ra46996d] [Citation(s) in RCA: 468] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Srour H, Le Maux P, Chevance S, Simonneaux G. Metal-catalyzed asymmetric sulfoxidation, epoxidation and hydroxylation by hydrogen peroxide. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.05.010] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Li H, She Y, Wang T. Advances and perspectives in catalysts for liquid-phase oxidation of cyclohexane. Front Chem Sci Eng 2012. [DOI: 10.1007/s11705-012-0903-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Abstract
Iron-catalyzed reactions are receiving a surge of interest owing to the natural abundance and biocompatibility of Fe and the urge to develop practically useful sustainable catalysis for fine chemical industries. This article is a brief account of our studies on the C–O and C–N bond formation reactions catalyzed by Fe complexes supported by oligopyridine, macrocyclic tetraaza, and fluorinated porphyrin ligands. The working principle is the in situ generation of reactive Fe=O and Fe=NR intermediates supported by these oxidatively robust N-donor ligands for oxygen atom/nitrogen group transfer and insertion reactions. The catalytic reactions include C–H bond oxidation of saturated hydrocarbons (up to 87 % yield), epoxidation of alkenes (up to 96 % yield), cis-dihydroxylation of alkenes (up to 99 % yield), epoxidation–isomerization (E–I) reaction of aryl alkenes (up to 94 % yield), amination of C–H bonds (up to 95 % yield), aziridination of alkenes (up to 95 % yield), sulfimidation of sulfides (up to 96 % yield), and amide formation from aldehydes (up to 89 % yield). Many of these catalytic reactions feature high regio- and diastereoselectivity and/or high product yields and substrate conversions, and recyclability of the catalyst, demonstrating the applicability of Fe-catalyzed oxidative organic transformation reactions in practical organic synthesis.
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Katayev EA, Lavrov HV, Khrustalev VN. Deprotonation induced dioxygen activation and ligand oxidation by dipyrromethane-palladium complexes. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424608000509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Novel palladium(II) complexes with α,α'-bis(phenylimino)- and α,α'-bis(picolyl)-substituted meso- H -dipyrromethanes have been prepared. The complexes are able to react with dioxygen upon activation with potassium tert-butoxide. Reactions with dioxygen afford C - N or C - C self-bond cleavage producing α-pyrrole-carboxylate or α-hydroxypyrrole residues, respectively. According to DFT calculations the deprotonation of meso-hydrogen leads to the redistribution of electron density between ligand and metal, thus formally forming dipyrromethene-palladium(0) anionic complex. Possible reactive oxygen-containing intermediates have been suggested on the basis of calculations.
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Affiliation(s)
- Evgeny A. Katayev
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 28 Vavilov st., 119991 Moscow, Russia
- Department of Chemistry, M. V. Lomonosov Moscow State University, 1/3 Leninskie gory, 119991 Moscow, Russia
| | - Herman V. Lavrov
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 28 Vavilov st., 119991 Moscow, Russia
| | - Victor N. Khrustalev
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 28 Vavilov st., 119991 Moscow, Russia
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Yang J, Jiang J, Fang W, Kai X, Hu C, Yang Y. One-pot synthesis of 5-(8-ethoxycarbonyl-1-naphthyl)-10,15,20-triphenyl porphyrin (ENTPP) and spontaneous resolution upon crystallization. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611003136] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
5-(8-ethoxycarbonyl-1-naphthyl)-10,15,20-triphenyl porphyrin (ENTPP) has been synthesized in a one-pot reaction, and the corresponding chiral crystalline samples have been obtained by spontaneous resolution. 1 H NMR spectrum suggests it is mononaphthyl substituted species and an ethyl group is over the porphyrin plane. The structure has been further confirmed by X-ray crystallography. ENTPP·C6H14 (C57H50N4O2 ): monoclinic, P21, a = 10.707(2) Å, b = 12.203(2) Å, c = 17.858(4) Å, β = 103.06(3)°, V = 2272.8(8) Å3, Z = 2. The 8-position substituent, ester group, lies above the porphyrin plane and leads to the conformational chirality. The entire structure is built up with homochiral molecules, which leads to a chiral crystal through packing in P21 space group. Circular dichroism (CD) spectra have exhibited remarkable absorptions in the Soret band region, which further confirms the homochirality of the crystalline samples.
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Affiliation(s)
- Juanxia Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Jiaxun Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Weiguang Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaoxu Kai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Chuanjiang Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- State Key Lab & Coordination Chemistry Institute, Nanjing University, Nanjing 210093, P. R. China
| | - Yonggang Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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Gao B, Zhao J, Li Y. Catalytic activity of immobilized metalloporphyrins prepared by synchronously synthesizing and immobilizing porphyrins on polymeric microspheres. J Appl Polym Sci 2011. [DOI: 10.1002/app.34088] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lu H, Zhang XP. Catalytic C–H functionalization by metalloporphyrins: recent developments and future directions. Chem Soc Rev 2011; 40:1899-909. [DOI: 10.1039/c0cs00070a] [Citation(s) in RCA: 548] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Che CM, Lo VKY, Zhou CY, Huang JS. Selective functionalisation of saturated C–H bonds with metalloporphyrin catalysts. Chem Soc Rev 2011; 40:1950-75. [DOI: 10.1039/c0cs00142b] [Citation(s) in RCA: 495] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Chmielewski PJ, Szterenberg L, Siczek M. Enantiomer Resolution of Intrinsically Chiral C21-Alkylated N-Confused Porphyrin Complexes. Chemistry 2010; 17:1009-20. [DOI: 10.1002/chem.201000534] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 08/16/2010] [Indexed: 11/11/2022]
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Götz DCG, Bruhn T, Senge MO, Bringmann G. Synthesis and stereochemistry of highly unsymmetric beta,meso-linked porphyrin arrays. J Org Chem 2010; 74:8005-20. [PMID: 19705809 DOI: 10.1021/jo901483q] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Porphyrin arrays with tailor-made photophysical properties and well-defined three-dimensional geometries constitute attractive synthetic targets in porphyrin chemistry. The paper describes a variable, straightforward synthetic procedure for the construction of beta,meso-linked porphyrin multichromophores in good to excellent yields. In a Suzuki-type coupling reaction beta-borylated 5,10,15,20-tetraarylporphyrins (TAPs) served as versatile building blocks for the preparation of a plethora of directly linked, unsymmetrically substituted di- and triporphyrins. Besides their interesting photophysical properties, especially the trimeric porphyrin arrays show exciting stereochemical features. The established protocols thus open a convenient entry into the synthesis of achiral and chiral, unsymmetrically substituted beta,meso-linked oligoporphyrins, e.g., for applications in biomedicine or nonlinear optics.
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Affiliation(s)
- Daniel C G Götz
- Institute of Organic Chemistry and Rontgen Research Center for Complex Material Systems, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
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Che CM, Huang JS. Metalloporphyrin-based oxidation systems: from biomimetic reactions to application in organic synthesis. Chem Commun (Camb) 2009:3996-4015. [PMID: 19568617 DOI: 10.1039/b901221d] [Citation(s) in RCA: 180] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidation of organic substrates catalyzed by metalloporphyrins constitutes a major class of biomimetic oxidation reactions used in modern synthetic chemistry. Ruthenium porphyrins are among the most extensively studied metalloporphyrin oxidation catalysts. This article provides a brief outline of the metalloporphyrin-based oxidation systems and is focused on the oxidation reactions catalyzed by ruthenium porphyrins performed in the author's laboratory. A series of ruthenium porphyrin catalysts, including those immobilized onto insoluble supports and covalently attached to soluble supports, promote the oxidation of a wide variety of organic substrates such as styrenes, cycloalkenes, alpha,beta-unsaturated ketones, steroids, benzylic hydrocarbons and arenes with 2,6-dichloropyridine-N-oxide or air in up to >99% yields, with high regio-, chemo- and/or stereoselectivity, and with product turnovers of up to 3.0x10(4), demonstrating the potential application of ruthenium porphyrin-based oxidation systems in organic syntheses.
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Affiliation(s)
- Chi-Ming Che
- Department of Chemistry, Open Laboratory of Chemical Biology, Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Pokfulam Road, Hong Kong.
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Giri R, Shi BF, Engle KM, Maugel N, Yu JQ. Transition metal-catalyzed C–H activation reactions: diastereoselectivity and enantioselectivity. Chem Soc Rev 2009; 38:3242-72. [DOI: 10.1039/b816707a] [Citation(s) in RCA: 1360] [Impact Index Per Article: 90.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Covell D, White M. A Chiral Lewis Acid Strategy for Enantioselective Allylic CH Oxidation. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802106] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Rebouças JS, Cheu ELS, Ware CJ, James BR, Skov KA. Synthetic and Mechanistic Aspects of a New Method for Ruthenium-Metalation of Porphyrins and Schiff-Bases. Inorg Chem 2008; 47:7894-907. [DOI: 10.1021/ic800616q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Júlio S. Rebouças
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada, and Department of Advanced Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
| | - Elizabeth L. S. Cheu
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada, and Department of Advanced Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
| | - Caroline J. Ware
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada, and Department of Advanced Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada, and Department of Advanced Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
| | - Kirsten A. Skov
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada, and Department of Advanced Therapeutics, British Columbia Cancer Research Centre, Vancouver, BC V5Z 1L3, Canada
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Covell DJ, White MC. A chiral Lewis acid strategy for enantioselective allylic C-H oxidation. Angew Chem Int Ed Engl 2008; 47:6448-51. [PMID: 18624317 PMCID: PMC2720790 DOI: 10.1002/anie.200802106] [Citation(s) in RCA: 238] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - M. Christina White
- D. J. Covell, Prof. M. C. White, Department of Chemistry, Roger Adams Laboratory, University of Illinois, Urbana, IL 61801 (USA), Fax: (+1)217-2-14-8024, E-mail: , Homepage: http://www.scs.uiuc.edu/white/
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Iida T, Ogawa S, Hosoi K, Makino M, Fujimoto Y, Goto T, Mano N, Goto J, Hofmann AF. Regioselective Oxyfunctionalization of Unactivated Carbons in Steroids by a Model of Cytochrome P-450: Osmiumporphyrin Complex/tert-Butyl Hydroperoxide System. J Org Chem 2007; 72:823-30. [PMID: 17253801 DOI: 10.1021/jo061800g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
tert-Butyl hydroperoxide catalyzed by (5,10,15,20-tetramesitylporphyrinate) osmium(II) carbonyl [Os(TMP)CO] complex was found to be a highly efficient versatile oxidant for C-H carbons in steroid substrates. When reacted with representative steroids with an estrane, pregnane, 5beta-cholane, or 5alpha-cholestane structure, regioselective oxyfunctionalization and/or oxidative degradation occurred to give a variety of novel and uncommon derivatives in one step.
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Affiliation(s)
- Takashi Iida
- Department of Chemistry, College of Humanities and Sciences, Nihon University, Sakurajousui, Setagaya, Tokyo 156-8550, Japan.
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Berkessel A, Ertürk E, Kaiser P, Klein A, Kowalczyk RM, Sarkar B. On the redox states of ruthenium porphyrin oxidation catalysts. Dalton Trans 2007:3427-34. [PMID: 17664980 DOI: 10.1039/b705078j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tetraarylporphyrin ruthenium complexes [Ru(L)(aryl(4)Por)] (L = CO or PF(3); aryl = mesityl or 10-R'-bis-methano-octahydroanthracene-9-yl with R' = H, CF(3), OCH(3) or CH(3)) show a rich electrochemistry with at least five different stable oxidation states (including the parent state). The overall character of the redox behaviour is porphyrin-centred. However detailed spectroelectrochemical investigations using IR, UV/Vis/NIR and EPR spectroscopy (X- and K band) gave clear indication for ruthenium contributions.
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Affiliation(s)
- Albrecht Berkessel
- Universität zu Köln, Institut für Organische Chemie, Greinstrasse 4, D-50939, Köln, Germany.
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