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Chen J, Zhang J, Sun Y, Xu Y, Yang Y, Lee YM, Ji W, Wang B, Nam W, Wang B. Mononuclear Non-Heme Manganese-Catalyzed Enantioselective cis-Dihydroxylation of Alkenes Modeling Rieske Dioxygenases. J Am Chem Soc 2023; 145:27626-27638. [PMID: 38064642 DOI: 10.1021/jacs.3c09508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The practical catalytic enantioselective cis-dihydroxylation of olefins that utilize earth-abundant first-row transition metal catalysts under environmentally friendly conditions is an important yet challenging task. Inspired by the cis-dihydroxylation reactions catalyzed by Rieske dioxygenases and non-heme iron models, we report the biologically inspired cis-dihydroxylation catalysis that employs an inexpensive and readily available mononuclear non-heme manganese complex bearing a tetradentate nitrogen-donor ligand and aqueous hydrogen peroxide (H2O2) and potassium peroxymonosulfate (KHSO5) as terminal oxidants. A wide range of olefins are efficiently oxidized to enantioenriched cis-diols in practically useful yields with excellent cis-dihydroxylation selectivity and enantioselectivity (up to 99% ee). Mechanistic studies, such as isotopically 18O-labeled water experiments, and density functional theory (DFT) calculations support that a manganese(V)-oxo-hydroxo (HO-MnV═O) species, which is formed via the water-assisted heterolytic O-O bond cleavage of putative manganese(III)-hydroperoxide and manganese(III)-peroxysulfate precursors, is the active oxidant that effects the cis-dihydroxylation of olefins; this is reminiscent of the frequently postulated iron(V)-oxo-hydroxo (HO-FeV═O) species in the catalytic arene and alkene cis-dihydroxylation reactions by Rieske dioxygenases and synthetic non-heme iron models. Further, DFT calculations for the mechanism of the HO-MnV═O-mediated enantioselective cis-dihydroxylation of olefins reveal that the first oxo attack step controls the enantioselectivity, which exhibits a high preference for cis-dihydroxylation over epoxidation. In this study, we are able to replicate both the catalytic function and the key chemical principles of Rieske dioxygenases in mononuclear non-heme manganese-catalyzed enantioselective cis-dihydroxylation of olefins.
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Affiliation(s)
- Jie Chen
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Jinyan Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ying Sun
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yuankai Xu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yinan Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wenhua Ji
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Binju Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Bin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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2
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Biologically inspired nonheme iron complex-catalyzed cis-dihydroxylation of alkenes modeling Rieske dioxygenases. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Cationic barium benzyl and hydride complexes that contain an eighteen-membered N,N,N,N,N,N-type macrocycle. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Zehner B, Korth W, Schmidt F, Cokoja M, Jess A. Kinetics of Epoxidation of Cyclooctene with Ionic Liquids Containing Tungstate as Micellar Catalyst. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bastian Zehner
- Faculty of Engineering Science Chair of Chemical Engineering Universitaetsstrasse 30 95447 Bayreuth Germany
| | - Wolfgang Korth
- Faculty of Engineering Science Chair of Chemical Engineering Universitaetsstrasse 30 95447 Bayreuth Germany
| | - Fabian Schmidt
- Technical University of Munich Chair of Inorganic and Metal-Organic Chemistry Faculty of Chemistry and Catalysis Research Center Ernst-Otto-Fischer-Strasse 1 85747 Garching bei München Germany
| | - Mirza Cokoja
- Technical University of Munich Chair of Inorganic and Metal-Organic Chemistry Faculty of Chemistry and Catalysis Research Center Ernst-Otto-Fischer-Strasse 1 85747 Garching bei München Germany
| | - Andreas Jess
- Faculty of Engineering Science Chair of Chemical Engineering Universitaetsstrasse 30 95447 Bayreuth Germany
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5
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Wang Y, Gayet F, Daran JC, Guillo P, Agustin D. Replacement of Volatile Acetic Acid by Solid SiO 2@COOH Silica (Nano)Beads for (Ep)Oxidation Using Mn and Fe Complexes Containing BPMEN Ligand. Molecules 2021; 26:5435. [PMID: 34576906 PMCID: PMC8470966 DOI: 10.3390/molecules26185435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 11/30/2022] Open
Abstract
Mn and Fe BPMEN complexes showed excellent reactivity in catalytic oxidation with an excess of co-reagent (CH3COOH). In the straight line of a cleaner catalytic system, volatile acetic acid was replaced by SiO2 (nano)particles with two different sizes to which pending carboxylic functions were added (SiO2@COOH). The SiO2@COOH beads were obtained by the functionalization of SiO2 with pending nitrile functions (SiO2@CN) followed by CN hydrolysis. All complexes and silica beads were characterized by NMR, infrared, DLS, TEM, X-ray diffraction. The replacement of CH3COOH by SiO2@COOH (100 times less on molar ratio) has been evaluated for (ep)oxidation on several substrates (cyclooctene, cyclohexene, cyclohexanol) and discussed in terms of activity and green metrics.
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Affiliation(s)
- Yun Wang
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, Route de Narbonne, F-31077 Toulouse, France; (Y.W.); (F.G.); (J.-C.D.)
- Département de Chimie, Institut Universitaire de Technologie Paul Sabatier, Université de Toulouse, Av. Georges Pompidou, BP 20258, CEDEX, F-81104 Castres, France
| | - Florence Gayet
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, Route de Narbonne, F-31077 Toulouse, France; (Y.W.); (F.G.); (J.-C.D.)
- INPT, École Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques, CS 44362, CEDEX 4, F-31030 Toulouse, France
| | - Jean-Claude Daran
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, Route de Narbonne, F-31077 Toulouse, France; (Y.W.); (F.G.); (J.-C.D.)
| | - Pascal Guillo
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, Route de Narbonne, F-31077 Toulouse, France; (Y.W.); (F.G.); (J.-C.D.)
- Département de Chimie, Institut Universitaire de Technologie Paul Sabatier, Université de Toulouse, Av. Georges Pompidou, BP 20258, CEDEX, F-81104 Castres, France
| | - Dominique Agustin
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205, Route de Narbonne, F-31077 Toulouse, France; (Y.W.); (F.G.); (J.-C.D.)
- Département de Chimie, Institut Universitaire de Technologie Paul Sabatier, Université de Toulouse, Av. Georges Pompidou, BP 20258, CEDEX, F-81104 Castres, France
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Achard T, Bellemin‐Laponnaz S. Recent Advances on Catalytic Osmium‐Free Olefin
syn
‐Dihydroxylation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Thierry Achard
- Département des Matériaux Organiques Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) Université de Strasbourg CNRS UMR‐7504 23 rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
| | - Stéphane Bellemin‐Laponnaz
- Département des Matériaux Organiques Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) Université de Strasbourg CNRS UMR‐7504 23 rue du Loess, BP 43 67034 Strasbourg Cedex 2 France
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7
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Lee JL, Oswald VF, Biswas S, Hill EA, Ziller JW, Hendrich MP, Borovik AS. Stepwise assembly of heterobimetallic complexes: synthesis, structure, and physical properties. Dalton Trans 2021; 50:8111-8119. [PMID: 34019606 DOI: 10.1039/d1dt01021b] [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
Bimetallic active sites are ubiquitous in metalloenzymes and have sparked investigations of synthetic models to aid in the establishment of structure-function relationship. We previously reported a series of discrete bimetallic complexes with [FeIII-(μ-OH)-MII] cores in which the ligand framework provides distinct binding sites for two metal centers. The formation of these complexes relied on a stepwise synthetic approach in which an FeIII-OH complex containing a sulfonamido tripodal ligand served as a synthon that promoted assembly. We have utilized this approach in the present study to produce a new series of bimetallic complexes with [FeIII-(μ-OH)-MII] cores (M = Ni, Cu, Zn) by using an ancillary ligand to the FeIII center that contains phosphinic amido groups. Assembly began with formation of an FeIII-OH that was subsequently used to bind the MII fragment that contained a triazacyclononane ligand. The series of bimetallic complexes were charactered structurally by X-ray diffraction methods, spectroscopically by absorption, vibrational, electron paramagnetic resonance spectroscopies, and electrochemically by cyclic voltammetry. A notable finding is that these new [FeIII-(μ-OH)-MII] complexes displayed significantly lower reduction potentials than their sulfonamido counterparts, which paves way for future studies on high valent bimetallic complexes in this scaffold.
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Affiliation(s)
- Justin L Lee
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697, USA.
| | - Victoria F Oswald
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697, USA.
| | - Saborni Biswas
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA
| | - Ethan A Hill
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697, USA.
| | - Joseph W Ziller
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697, USA.
| | - Michael P Hendrich
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA
| | - A S Borovik
- Department of Chemistry, 1102 Natural Sciences II, University of California, Irvine, California 92697, USA.
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Wei J, Wu L, Wang HX, Zhang X, Tse CW, Zhou CY, Huang JS, Che CM. Iron-Catalyzed Highly Enantioselective cis-Dihydroxylation of Trisubstituted Alkenes with Aqueous H 2 O 2. Angew Chem Int Ed Engl 2020; 59:16561-16571. [PMID: 32500643 DOI: 10.1002/anie.202002866] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Indexed: 01/02/2023]
Abstract
Reliable methods for enantioselective cis-dihydroxylation of trisubstituted alkenes are scarce. The iron(II) complex cis-α-[FeII (2-Me2 -BQPN)(OTf)2 ], which bears a tetradentate N4 ligand (Me2 -BQPN=(R,R)-N,N'-dimethyl-N,N'-bis(2-methylquinolin-8-yl)-1,2-diphenylethane-1,2-diamine), was prepared and characterized. With this complex as the catalyst, a broad range of trisubstituted electron-deficient alkenes were efficiently oxidized to chiral cis-diols in yields of up to 98 % and up to 99.9 % ee when using hydrogen peroxide (H2 O2 ) as oxidant under mild conditions. Experimental studies (including 18 O-labeling, ESI-MS, NMR, EPR, and UV/Vis analyses) and DFT calculations were performed to gain mechanistic insight, which suggested possible involvement of a chiral cis-FeV (O)2 reaction intermediate as an active oxidant. This cis-[FeII (chiral N4 ligand)]2+ /H2 O2 method could be a viable green alternative/complement to the existing OsO4 -based methods for asymmetric alkene dihydroxylation reactions.
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Affiliation(s)
- Jinhu Wei
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Liangliang Wu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hai-Xu Wang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xiting Zhang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chun-Wai Tse
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Cong-Ying Zhou
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.,HKU Shenzhen Institute of Research & Innovation, Shenzhen, China
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9
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Wei J, Wu L, Wang H, Zhang X, Tse C, Zhou C, Huang J, Che C. Iron‐Catalyzed Highly Enantioselective
cis
‐Dihydroxylation of Trisubstituted Alkenes with Aqueous H
2
O
2. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinhu Wei
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Liangliang Wu
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Hai‐Xu Wang
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Xiting Zhang
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Chun‐Wai Tse
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Cong‐Ying Zhou
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Jie‐Sheng Huang
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic Chemistry and Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong China
- HKU Shenzhen Institute of Research & Innovation Shenzhen China
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10
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Yu W, Zhao Z. Catalyst-Free Selective Oxidation of Diverse Olefins to Carbonyls in High Yield Enabled by Light under Mild Conditions. Org Lett 2019; 21:7726-7730. [PMID: 31524410 DOI: 10.1021/acs.orglett.9b02569] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The selective oxidation of olefins, in particular, aromatic olefins to carbonyls, is of significance in organic synthesis. In general, stoichiometric toxic oxidants or a high-cost catalyst is required. Herein we report a novel and practical light-enabled protocol for the synthesis of carbonlys in high yield through a catalyst-free oxidation of olefins using H2O2 as a clean oxidant. A broad scope of carbonyls can be synthesized in high yield, and no catalyst or toxic oxidant is required.
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Affiliation(s)
- Weiwei Yu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Zhongkui Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering , Dalian University of Technology , Dalian 116024 , P. R. China
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11
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Recent advances in the catalytic oxidation of alkene and alkane substrates using immobilized manganese complexes with nitrogen containing ligands. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.12.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Schäffer J, Zehner B, Korth W, Cokoja M, Jess A. Kinetic Model of Two-Phase Epoxidation with Ionic Liquids as Micellar Catalysts. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201800399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Johannes Schäffer
- University of Bayreuth; Chair of Chemical Engineering; Universitätsstraße 30 95440 Bayreuth Germany
| | - Bastian Zehner
- University of Bayreuth; Chair of Chemical Engineering; Universitätsstraße 30 95440 Bayreuth Germany
| | - Wolfgang Korth
- University of Bayreuth; Chair of Chemical Engineering; Universitätsstraße 30 95440 Bayreuth Germany
| | - Mirza Cokoja
- Technical University of Munich; Chair of Inorganic and Metal-Organic Chemistry; Lichtenbergstraße 4 85748 Garching Germany
| | - Andreas Jess
- University of Bayreuth; Chair of Chemical Engineering; Universitätsstraße 30 95440 Bayreuth Germany
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13
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Non-redox metal ions accelerated oxygen atom transfer by Mn-Me3tacn complex with H2O2 as oxygen resource. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Catalytic performance of binary and ternary oxovanadium complexes of dipyridinyl-urea in (ep)oxidation of cis-cyclooctene and 1-octene. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1399-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Nodzewska A, Watkinson M. Remarkable increase in the rate of the catalytic epoxidation of electron deficient styrenes through the addition of Sc(OTf)3 to the MnTMTACN catalyst. Chem Commun (Camb) 2018; 54:1461-1464. [DOI: 10.1039/c7cc09698d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Sc(OTf)3 produces a remarkable enhancement in the activity of the MnTMTACN catalyst in the epoxidation of electron deficient styrenes.
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Affiliation(s)
- Aneta Nodzewska
- The Joseph Priestley Building
- School of Biological and Chemical Sciences
- Queen Mary University of London
- London
- UK
| | - Michael Watkinson
- The Joseph Priestley Building
- School of Biological and Chemical Sciences
- Queen Mary University of London
- London
- UK
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16
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Sano Y, Lau N, Weitz AC, Ziller JW, Hendrich MP, Borovik A. Models for Unsymmetrical Active Sites in Metalloproteins: Structural, Redox, and Magnetic Properties of Bimetallic Complexes with M II-(μ-OH)-Fe III Cores. Inorg Chem 2017; 56:14118-14128. [PMID: 29112385 PMCID: PMC5696092 DOI: 10.1021/acs.inorgchem.7b02230] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bimetallic complexes are important sites in metalloproteins but are often difficult to prepare synthetically. We have previously introduced an approach to form discrete bimetallic complexes with MII-(μ-OH)-FeIII (MII = Mn, Fe) cores using the tripodal ligand N,N',N″-[2,2',2″-nitrilotris(ethane-2,1-diyl)]tris(2,4,6-trimethylbenzenesulfonamido) ([MST]3-). This series is extended to include the rest of the late 3d transition metal ions (MII = Co, Ni, Cu, Zn). All of the bimetallic complexes have similar spectroscopic and structural properties that reflect little change despite varying the MII centers. Magnetic studies performed on the complexes in solution using electron paramagnetic resonance spectroscopy showed that the observed spin states varied incrementally from S = 0 through S = 5/2; these results are consistent with antiferromagnetic coupling between the high-spin MII and FeIII centers. However, the difference in the MII ion occupancy yielded only slight changes in the magnetic exchange coupling strength, and all complexes had J values ranging from +26(4) to +35(3) cm-1.
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Affiliation(s)
- Yohei Sano
- Department of Chemistry, University of California – Irvine, 1102 Natural Sciences II, Irvine, CA 92697-2025, United States
| | - Nathanael Lau
- Department of Chemistry, University of California – Irvine, 1102 Natural Sciences II, Irvine, CA 92697-2025, United States
| | - Andrew C. Weitz
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California – Irvine, 1102 Natural Sciences II, Irvine, CA 92697-2025, United States
| | - Michael P. Hendrich
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - A.S. Borovik
- Department of Chemistry, University of California – Irvine, 1102 Natural Sciences II, Irvine, CA 92697-2025, United States
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17
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Abstract
Nogalamycin, an aromatic polyketide displaying high cytotoxicity, has a unique structure, with one of the carbohydrate units covalently attached to the aglycone via an additional carbon-carbon bond. The underlying chemistry, which implies a particularly challenging reaction requiring activation of an aliphatic carbon atom, has remained enigmatic. Here, we show that the unusual C5''-C2 carbocyclization is catalyzed by the non-heme iron α-ketoglutarate (α-KG)-dependent SnoK in the biosynthesis of the anthracycline nogalamycin. The data are consistent with a mechanistic proposal whereby the Fe(IV) = O center abstracts the H5'' atom from the amino sugar of the substrate, with subsequent attack of the aromatic C2 carbon on the radical center. We further show that, in the same metabolic pathway, the homologous SnoN (38% sequence identity) catalyzes an epimerization step at the adjacent C4'' carbon, most likely via a radical mechanism involving the Fe(IV) = O center. SnoK and SnoN have surprisingly similar active site architectures considering the markedly different chemistries catalyzed by the enzymes. Structural studies reveal that the differences are achieved by minor changes in the alignment of the substrates in front of the reactive ferryl-oxo species. Our findings significantly expand the repertoire of reactions reported for this important protein family and provide an illustrative example of enzyme evolution.
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18
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Kwon S, Schweitzer NM, Park S, Stair PC, Snurr RQ. A kinetic study of vapor-phase cyclohexene epoxidation by H2O2 over mesoporous TS-1. J Catal 2015. [DOI: 10.1016/j.jcat.2015.04.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Sherborne GJ, Chapman MR, Blacker AJ, Bourne RA, Chamberlain TW, Crossley BD, Lucas SJ, McGowan PC, Newton MA, Screen TEO, Thompson P, Willans CE, Nguyen BN. Activation and deactivation of a robust immobilized Cp*Ir-transfer hydrogenation catalyst: a multielement in situ X-ray absorption spectroscopy study. J Am Chem Soc 2015; 137:4151-7. [PMID: 25768298 DOI: 10.1021/ja512868a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly robust immobilized [Cp*IrCl2]2 precatalyst on Wang resin for transfer hydrogenation, which can be recycled up to 30 times, was studied using a novel combination of X-ray absorption spectroscopy (XAS) at Ir L3-edge, Cl K-edge, and K K-edge. These culminate in in situ XAS experiments that link structural changes of the Ir complex with its catalytic activity and its deactivation. Mercury poisoning and "hot filtration" experiments ruled out leached Ir as the active catalyst. Spectroscopic evidence indicates the exchange of one chloride ligand with an alkoxide to generate the active precatalyst. The exchange of the second chloride ligand, however, leads to a potassium alkoxide-iridate species as the deactivated form of this immobilized catalyst. These findings could be widely applicable to the many homogeneous transfer hydrogenation catalysts with Cp*IrCl substructure.
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Affiliation(s)
| | | | | | | | - Thomas W Chamberlain
- ‡School of Chemistry, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Benjamin D Crossley
- §Yorkshire Process Technology Ltd., Leeds Innovation Centre, 103 Clarendon Road, Leeds, LS2 9DF, United Kingdom
| | | | | | - Mark A Newton
- ⊥Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom.,#XMaS CRG, European Synchrotron Radiation Facility, 38043 Cedex, Grenoble, France
| | - Thomas E O Screen
- §Yorkshire Process Technology Ltd., Leeds Innovation Centre, 103 Clarendon Road, Leeds, LS2 9DF, United Kingdom
| | - Paul Thompson
- ⊥Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom.,#XMaS CRG, European Synchrotron Radiation Facility, 38043 Cedex, Grenoble, France
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Tsuruta T, Yamazaki T, Watanabe K, Chiba Y, Yoshida A, Naito S, Nakazawa J, Hikichi S. Mimicking the Active Sites of Non-heme Iron Oxygenases on the Solid Supports of Catalysts: Formation of Immobilized Iron Complexes with Imidazolyl and Carboxylate Ligands. CHEM LETT 2015. [DOI: 10.1246/cl.140937] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Kazuki Watanabe
- Department of Material and Life Chemistry, Kanagawa University
| | - Yosuke Chiba
- Department of Material and Life Chemistry, Kanagawa University
| | - Akihiro Yoshida
- Department of Material and Life Chemistry, Kanagawa University
| | - Shuichi Naito
- Department of Material and Life Chemistry, Kanagawa University
| | - Jun Nakazawa
- Department of Material and Life Chemistry, Kanagawa University
| | - Shiro Hikichi
- Department of Material and Life Chemistry, Kanagawa University
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21
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Li N, Lu W, Pei K, Chen W. Interfacial peroxidase-like catalytic activity of surface-immobilized cobalt phthalocyanine on multiwall carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c4ra15306e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The rapid diffusional mass transfer process (DMTP) always results in a highly efficient reaction.
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Affiliation(s)
- Nan Li
- National Engineering Lab for Textile Fiber Materials
- Processing Technology (Zhejiang)
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials
- Processing Technology (Zhejiang)
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Kemei Pei
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Wenxing Chen
- National Engineering Lab for Textile Fiber Materials
- Processing Technology (Zhejiang)
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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22
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Gros G, Hasserodt J. Multigram Four-Step Synthesis of 1,4,7-Triazacyclononanes with 2Ra/RbN-Functionalization Pattern by Starting from Diethylenetriamine. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402821] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Hosseini-Monfared H, Alavi S, Mayer P. A novel homodinuclear manganese(III) complex with N,N′-bis(salicylidene)diethylenetriamine: Synthesis, structure and catalytic activity. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Codola Z, Lloret-Fillol J, Costas M. Aminopyridine Iron and Manganese Complexes as Molecular Catalysts for Challenging Oxidative Transformations. PROGRESS IN INORGANIC CHEMISTRY: VOLUME 59 2014. [DOI: 10.1002/9781118869994.ch07] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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25
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Hwang T, Goldsmith BR, Peters B, Scott SL. Water-Catalyzed Activation of H2O2 by Methyltrioxorhenium: A Combined Computational–Experimental Study. Inorg Chem 2013; 52:13904-17. [DOI: 10.1021/ic401343m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Taeho Hwang
- Department of Chemical Engineering and ‡Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-5080, United States
| | - Bryan R. Goldsmith
- Department of Chemical Engineering and ‡Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-5080, United States
| | - Baron Peters
- Department of Chemical Engineering and ‡Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-5080, United States
| | - Susannah L. Scott
- Department of Chemical Engineering and ‡Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106-5080, United States
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26
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Muratsugu S, Weng Z, Tada M. Surface Functionalization of Supported Mn Clusters to Produce Robust Mn Catalysts for Selective Epoxidation. ACS Catal 2013. [DOI: 10.1021/cs400053f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Satoshi Muratsugu
- Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki, Aichi 444-8585,
Japan
| | - Zhihuan Weng
- Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki, Aichi 444-8585,
Japan
- Department of Applied Physics
and Chemistry, The University of Electro-Communication, Chofu, Tokyo 182-8585, Japan
| | - Mizuki Tada
- Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki, Aichi 444-8585,
Japan
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27
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Ilyashenko G, De Faveri G, Masoudi S, Al-Safadi R, Watkinson M. Initial rate kinetic studies show an unexpected influence of para-substituents on the catalytic behaviour of manganese complexes of TMTACN in the epoxidation of styrenes with H2O2. Org Biomol Chem 2013; 11:1942-51. [PMID: 23358659 DOI: 10.1039/c3ob27217f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Investigations into the efficacy of a range of enantiomerically pure BINOL additives in the epoxidation of styrene substrates with a number of manganese catalysts prepared from the ligand 1,4,7-trimethyl-1,4,7-triazacyclononane, TMTACN, using hydrogen peroxide as the oxidant have revealed that there are fundamental differences in reactivity between apparently similar systems. Whilst no asymmetric induction was obtained in the styrene oxide products formed, the data obtained from initial rate kinetic studies appear to be consistent with a number of different catalytically active species operating, the nature of which are profoundly affected by the starting materials used.
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Affiliation(s)
- Gennadiy Ilyashenko
- The Joseph Priestley Building, School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
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28
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Saisaha P, de Boer JW, Browne WR. Mechanisms in manganese catalysed oxidation of alkenes with H2O2. Chem Soc Rev 2013; 42:2059-74. [DOI: 10.1039/c2cs35443h] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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Muratsugu S, Lim MH, Itoh T, Thumrongpatanaraks W, Kondo M, Masaoka S, Andy Hor TS, Tada M. Dispersed Ru nanoclusters transformed from a grafted trinuclear Ru complex on SiO2 for selective alcohol oxidation. Dalton Trans 2013; 42:12611-9. [DOI: 10.1039/c3dt51142a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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30
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Hage R, de Boer JW, Gaulard F, Maaijen K. Manganese and Iron Bleaching and Oxidation Catalysts. ADVANCES IN INORGANIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-404582-8.00003-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Surface structural-chemical characterization of a single-site d0 heterogeneous arene hydrogenation catalyst having 100% active sites. Proc Natl Acad Sci U S A 2012; 110:413-8. [PMID: 23269836 DOI: 10.1073/pnas.1220240110] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Structural characterization of the catalytically significant sites on solid catalyst surfaces is frequently tenuous because their fraction, among all sites, typically is quite low. Here we report the combined application of solid-state (13)C-cross-polarization magic angle spinning nuclear magnetic resonance ((13)C-CPMAS-NMR) spectroscopy, density functional theory (DFT), and Zr X-ray absorption spectroscopy (XAS) to characterize the adsorption products and surface chemistry of the precatalysts (η(5)-C(5)H(5))(2)ZrR(2) (R = H, CH(3)) and [η(5)-C(5)(CH(3))(5)]Zr(CH(3))(3) adsorbed on Brønsted superacidic sulfated alumina (AlS). The latter complex is exceptionally active for benzene hydrogenation, with ~100% of the Zr sites catalytically significant as determined by kinetic poisoning experiments. The (13)C-CPMAS-NMR, DFT, and XAS data indicate formation of organozirconium cations having a largely electrostatic [η(5)-C(5)(CH(3))(5)]Zr(CH(3))(2)(+)· · · AlS(-) interaction with greatly elongated Zr · · · O(AlS) distances of ~2.35(2) Å. The catalytic benzene hydrogenation cycle is stepwise understandable by DFT, and proceeds via turnover-limiting H(2) delivery to surface [η(5)-C(5)(CH(3))(5)]ZrH(2)(benzene)(+)· · · AlS(-) species, observable by solid-state NMR and XAS.
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Schoenfeldt NJ, Notestein JM. Solid Cocatalysts for Activating Manganese Triazacyclononane Oxidation Catalysts. ACS Catal 2011. [DOI: 10.1021/cs200353x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nicholas J. Schoenfeldt
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Technological Institute, Room E136, Evanston, Illinois 60208, United States
| | - Justin M. Notestein
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Technological Institute, Room E136, Evanston, Illinois 60208, United States
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