101
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Karimpour T, Safaei E, Karimi B, Lee YI. Iron(III) Amine Bis(phenolate) Complex Immobilized on Silica-Coated Magnetic Nanoparticles: A Highly Efficient Catalyst for the Oxidation of Alcohols and Sulfides. ChemCatChem 2017. [DOI: 10.1002/cctc.201701217] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Touraj Karimpour
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); P.O. Box 45137-66731, Gava Zang Zanjan Iran
| | - Elham Safaei
- Department of Chemistry; College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Babak Karimi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); P.O. Box 45137-66731, Gava Zang Zanjan Iran
| | - Yong-Ill Lee
- Department of Chemistry; Changwon National University; Changwon 641-773 South Korea
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102
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Oloo WN, Banerjee R, Lipscomb JD, Que L. Equilibrating (L)Fe III-OOAc and (L)Fe V(O) Species in Hydrocarbon Oxidations by Bio-Inspired Nonheme Iron Catalysts Using H 2O 2 and AcOH. J Am Chem Soc 2017; 139:17313-17326. [PMID: 29136467 PMCID: PMC5768304 DOI: 10.1021/jacs.7b06246] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by the remarkable chemistry of the family of Rieske oxygenase enzymes, nonheme iron complexes of tetradentate N4 ligands have been developed to catalyze hydrocarbon oxidation reactions using H2O2 in the presence of added carboxylic acids. The observation that the stereo- and enantioselectivity of the oxidation products can be modulated by the electronic and steric properties of the acid implicates an oxidizing species that incorporates the carboxylate moiety. Frozen solutions of these catalytic mixtures generally exhibit EPR signals arising from two S = 1/2 intermediates, a highly anisotropic g2.7 subset (gmax = 2.58 to 2.78 and Δg = 0.85-1.2) that we assign to an FeIII-OOAc species and a less anisotropic g2.07 subset (g = 2.07, 2.01, and 1.96 and Δg ≈ 0.11) we associate with an FeV(O)(OAc) species. Kinetic studies on the reactions of iron complexes supported by the TPA (tris(pyridyl-2-methyl)amine) ligand family with H2O2/AcOH or AcOOH at -40 °C reveal the formation of a visible chromophore at 460 nm, which persists in a steady state phase and then decays exponentially upon depletion of the peroxo oxidant with a rate constant that is substrate independent. Remarkably, the duration of this steady state phase can be modulated by the nature of the substrate and its concentration, which is a rarely observed phenomenon. A numerical simulation of this behavior as a function of substrate type and concentration affords a kinetic model in which the two S = 1/2 intermediates exist in a dynamic equilibrium that is modulated by the electronic properties of the supporting ligands. This notion is supported by EPR studies of the reaction mixtures. Importantly, these studies unambiguously show that the g2.07 species, and not the g2.7 species, is responsible for substrate oxidation in the (L)FeII/H2O2/AcOH catalytic system. Instead the g2.7 species appears to be off-pathway and serves as a reservoir for the g2.07 species. These findings will be helpful not only for the design of regio- and stereospecific nonheme iron oxidation catalysts but also for providing insight into the mechanisms of the remarkably versatile oxidants formed by nature's most potent oxygenases.
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Affiliation(s)
- Williamson N. Oloo
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455 (United States)
| | - Rahul Banerjee
- Department of Biochemistry, Molecular Biology, and Biophysics and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455 (United States)
| | - John D. Lipscomb
- Department of Biochemistry, Molecular Biology, and Biophysics and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455 (United States)
| | - Lawrence Que
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455 (United States)
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103
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Liu H, An Z, He J. Nanosheet-enhanced efficiency in amine-catalyzed asymmetric epoxidation of α, β-unsaturated aldehydes via host-guest synergy. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.09.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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104
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Speciation in iron epoxidation catalysis: A perspective on the discovery and role of non-heme iron(III)-hydroperoxo species in iron-catalyzed oxidation reactions. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.09.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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105
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Ng VYM, Tse CW, Guan X, Chang X, Yang C, Low KH, Lee HK, Huang JS, Che CM. cis-Dioxorhenium(V/VI) Complexes Supported by Neutral Tetradentate N 4 Ligands. Synthesis, Characterization, and Spectroscopy. Inorg Chem 2017; 56:15066-15080. [PMID: 29190093 DOI: 10.1021/acs.inorgchem.7b02404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of cis-dioxorhenium(V) complexes containing chiral tetradentate N4 ligands, including cis-[ReV(O)2(pyxn)]+ (1; pyxn = N,N'-dimethyl-N,N'-bis(2-pyridylmethyl)cyclohexane-1,2-diamine), cis-[ReV(O)2(6-Me2pyxn)]+ (cis-2), cis-[ReV(O)2(R,R-pdp)]+ (3; R,R-pdp = 1,1'-bis((R,R)-2-pyridinylmethyl)-2,2'-bipyrrolidine), cis-[ReV(O)2(R,R-6-Me2pdp)]+ (4), and cis-[ReV(O)2(bqcn)]+ (5; bqcn = N,N'-dimethyl-N,N'-di(quinolin-8-yl)cyclohexane-1,2-diamine), were synthesized. Their structures were established by X-ray crystallography, showing Re-O distances in the range of 1.740(3)-1.769(8) Å and O-Re-O angles of 121.4(2)-124.8(4)°. Their cyclic voltammograms in MeCN (0.1 M [NBu4]PF6) display a reversible ReVI/V couple at E1/2 = 0.39-0.49 V vs SCE. In aqueous media, three proton-coupled electron transfer reactions corresponding to ReVI/V, ReV/III, and ReIII/II couples were observed at pH 1. The Pourbaix diagrams of 1·OTf, 3·OTf, and 5·OTf have been examined. The electronic absorption spectra of the cis-dioxorhenium(V) complexes show three absorption bands at around 800 nm (600-1730 dm3 mol-1 cm-1), 580 nm (1700-5580 dm3 mol-1 cm-1), and 462-523 nm (3170-6000 dm3 mol-1 cm-1). Reaction of 1 with Lewis acids (or protic acids) gave cis-[ReV(O)(OH)(pyxn)]2+ (1·H+), in which the Re-O distances are lengthened to 1.788(5) Å. Complex cis-2 resulted from isomerization of trans-2 at elevated temperature. cis-[ReVI(O)2(pyxn)](PF6)2 (1'·(PF6)2) was obtained by constant-potential electrolysis of 1·PF6 in MeCN (0.1 M [NBu4]PF6) at 0.56 V vs SCE; it displays shorter Re-O distances (1.722(4), 1.726(4) Å) and a smaller O-Re-O angle (114.88(18)°) relative to 1 and shows a d-d transition absorption band at 591 nm (ε = 77 dm3 mol-1 cm-1). With a driving force of ca. 75 kcal mol-1, 1' oxidizes hydrocarbons with weak C-H bonds (75.5-76.3 kcal mol-1) via hydrogen atom abstraction. DFT and TDDFT calculations on the electronic structures and spectroscopic properties of the cis-dioxorhenium(V/VI) complexes were performed.
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Affiliation(s)
- Vicky Yin-Ming Ng
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Chun-Wai Tse
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Xiangguo Guan
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Xiaoyong Chang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Kam-Hung Low
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Hung Kay Lee
- Department of Chemistry, The Chinese University of Hong Kong , New Territories, Hong Kong, People's Republic of China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, and Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, People's Republic of Chinaa.,HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053, People's Republic of China
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106
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Zhang J, Wei WJ, Lu X, Yang H, Chen Z, Liao RZ, Yin G. Nonredox Metal Ions Promoted Olefin Epoxidation by Iron(II) Complexes with H2O2: DFT Calculations Reveal Multiple Channels for Oxygen Transfer. Inorg Chem 2017; 56:15138-15149. [DOI: 10.1021/acs.inorgchem.7b02463] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jisheng Zhang
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Wen-Jie Wei
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Xiaoyan Lu
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Hang Yang
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Zhuqi Chen
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Rong-Zhen Liao
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Guochuan Yin
- School of Chemistry and Chemical Engineering, Key laboratory
of Material Chemistry for Energy Conversion and Storage, Ministry
of Education, Hubei Key Laboratory of Material Chemistry and Service
Failure, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
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107
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Bryliakov KP. Catalytic Asymmetric Oxygenations with the Environmentally Benign Oxidants H2O2 and O2. Chem Rev 2017; 117:11406-11459. [DOI: 10.1021/acs.chemrev.7b00167] [Citation(s) in RCA: 226] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- 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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108
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Zhang H, Yao Q, Lin L, Xu C, Liu X, Feng X. Catalytic Asymmetric Epoxidation of Electron-Deficient Enynes Promoted by Chiral N,N′
-Dioxide-Scandium(III) Complex. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700555] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hang Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Qian Yao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Chaoran Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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109
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Milan M, Carboni G, Salamone M, Costas M, Bietti M. Tuning Selectivity in Aliphatic C–H Bond Oxidation of N-Alkylamides and Phthalimides Catalyzed by Manganese Complexes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02151] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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
| | - Giulia Carboni
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, 1 I-00133 Rome, Italy
| | - Michela Salamone
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, 1 I-00133 Rome, Italy
| | - 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
| | - Massimo Bietti
- Dipartimento
di Scienze e Tecnologie Chimiche, Università “Tor Vergata”, Via della Ricerca Scientifica, 1 I-00133 Rome, Italy
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110
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Zhang L, Meggers E. Stereogenic-Only-at-Metal Asymmetric Catalysts. Chem Asian J 2017; 12:2335-2342. [PMID: 28782915 DOI: 10.1002/asia.201700739] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/06/2017] [Indexed: 11/10/2022]
Abstract
Chirality is an essential feature of asymmetric catalysts. This review summarizes asymmetric catalysts that derive their chirality exclusively from stereogenic metal centers. Reported chiral-at-metal catalysts can be divided into two classes, namely, inert metal complexes, in which the metal fulfills a purely structural role, so catalysis is mediated entirely through the ligand sphere, and reactive metal complexes. The latter are particularly appealing because structural simplicity (only achiral ligands) is combined with the prospect of particularly effective asymmetric induction (direct contact of the substrate with the chiral metal center). Challenges and solutions for the design of such reactive stereogenic-only-at-metal asymmetric catalysts are discussed.
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Affiliation(s)
- Lilu Zhang
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
| | - Eric Meggers
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35043, Marburg, Germany
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111
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Trammell R, See YY, Herrmann AT, Xie N, Díaz DE, Siegler MA, Baran PS, Garcia-Bosch I. Decoding the Mechanism of Intramolecular Cu-Directed Hydroxylation of sp 3 C-H Bonds. J Org Chem 2017; 82:7887-7904. [PMID: 28654755 PMCID: PMC5792191 DOI: 10.1021/acs.joc.7b01069] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The use of copper in directed C-H oxidation has been relatively underexplored. In a seminal example, Schönecker showed that copper and O2 promoted the hydroxylation of steroid-containing ligands. Recently, Baran (J. Am. Chem. Soc. 2015, 137, 13776) improved the reaction conditions to oxidize similar substrates with excellent yields. In both reports, the involvement of Cu2O2 intermediates was suggested. In this collaborative article, we studied the hydroxylation mechanism in great detail, resulting in the overhaul of the previously accepted mechanism and the development of improved reaction conditions. Extensive experimental evidence (spectroscopic characterization, kinetic analysis, intermolecular reactivity, and radical trap experiments) is provided to support each of the elementary steps proposed and the hypothesis that a key mononuclear LCuII(OOR) intermediate undergoes homolytic O-O cleavage to generate reactive RO• species, which are responsible for key C-H hydroxylation within the solvent cage. These key findings allowed the oxidation protocol to be reformulated, leading to improvements of the reaction cost, practicability, and isolated yield.
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Affiliation(s)
- Rachel Trammell
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Yi Yang See
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Aaron T. Herrmann
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Nan Xie
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Daniel E. Díaz
- Johns Hopkins University, Baltimore, Maryland 21218, United States
| | | | - Phil S. Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Isaac Garcia-Bosch
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
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112
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Co(II) Schiff base complex decorated on polysalicylaldehyde as an efficient, selective, heterogeneous and reusable catalyst for epoxidation of olefins in mild and self-coreductant conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3027-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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113
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Olivo G, Barbieri A, Dantignana V, Sessa F, Migliorati V, Monte M, Pascarelli S, Narayanan T, Lanzalunga O, Di Stefano S, D'Angelo P. Following a Chemical Reaction on the Millisecond Time Scale by Simultaneous X-ray and UV/Vis Spectroscopy. J Phys Chem Lett 2017; 8:2958-2963. [PMID: 28605898 DOI: 10.1021/acs.jpclett.7b01133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
An innovative approach aimed at disclosing the mechanism of chemical reactions occurring in solution on the millisecond time scale is presented. Time-resolved energy dispersive X-ray absorption and UV/vis spectroscopies with millisecond resolution are used simultaneously to directly follow the evolution of both the oxidation state and the local structure of the metal center in an iron complex. Two redox reactions are studied, the former involving the transformation of FeII into two subsequent FeIII species and the latter involving the more complex FeII-FeIII-FeIV-FeIII sequence. The structural modifications occurring around the iron center are correlated to the reaction mechanisms. This combined approach has the potential to provide unique insights into reaction mechanisms in the liquid phase and represents a new powerful tool to characterize short-lived intermediates that are silent to common spectroscopic techniques.
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Affiliation(s)
- Giorgio Olivo
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
| | - Alessia Barbieri
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
| | - Valeria Dantignana
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
| | - Francesco Sessa
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
| | - Valentina Migliorati
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
| | - Manuel Monte
- European Synchrotron Radiation Facility , 71, Avenue des Martyrs, 38000 Grenoble, France
| | - Sakura Pascarelli
- European Synchrotron Radiation Facility , 71, Avenue des Martyrs, 38000 Grenoble, France
| | - Theyencheri Narayanan
- European Synchrotron Radiation Facility , 71, Avenue des Martyrs, 38000 Grenoble, France
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
- Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione , P.le A. Moro 5, 00185 Roma, Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
- Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione , P.le A. Moro 5, 00185 Roma, Italy
| | - Paola D'Angelo
- Dipartimento di Chimica, Università di Roma "La Sapienza" , P.le A. Moro 5, 00185 Roma, Italy
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114
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Cussó O, Serrano-Plana J, Costas M. Evidence of a Sole Oxygen Atom Transfer Agent in Asymmetric Epoxidations with Fe-pdp Catalysts. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01184] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Olaf Cussó
- QBIS Research Group, Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - Joan Serrano-Plana
- QBIS Research Group, Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - 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
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115
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DFT studies of the substituent effects of dimethylamino on non-heme active oxidizing species: iron(V)-oxo species or iron(IV)-oxo acetate aminopyridine cation radical species? J Biol Inorg Chem 2017; 22:987-998. [PMID: 28667369 DOI: 10.1007/s00775-017-1477-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 06/26/2017] [Indexed: 10/19/2022]
Abstract
Through the introduction of dimethylamino (Me2N) substituent at the pyridine ring of 2-((R)-2-[(R)-1-(pyridine-2-ylmethyl)pyrrolidin-2-yl]pyrrolidin-1-ylmethyl)pyridine (PDP) ligand, the non-heme FeII(Me2NPDP)/H2O2/AcOH catalyst system was found to exhibit significant higher catalytic activity and enantioselectivity than the non-substituent one in the asymmetric epoxidation experiments. The mechanistic origin of the remarkable substituent effects in these oxidation reactions has not been well established. To ascertain the potent oxidant and the related reaction mechanism, a detailed DFT calculation was performed. Interestingly, a novel Fe(IV)-oxo Me2NPDP cation radical species, [(Me2NPDP)+·FeIV(O)(OAc)]2+ ( Me2N 5), with about one spin spreading over the non-heme Me2NPDP ligand was formed via a carboxylic-acid-assisted O-O bond heterolysis, which is reminiscent of Compound I (an Fe(IV)(O)(porphyrin cation radical) species) in cytochrome P450 chemistry. Me2N 5 is energetically comparable with the cyclic ferric peracetate species Me2N 6, while in the pristine Fe(PDP) catalyst system, H 6 is more stable than H 5. Comparison of the activation energy for the ethylene epoxidation promoted by Me2N 5 and Me2N 6, Me2N 5 is supposed as the true oxidant triggering the epoxidation of olefins. In addition, a systematic research on the substituent effects varied from the electron-donating substituent (dMM, the substituents at sites 3, 4, and 5 of the pyridine ring: methyl, methoxyl, and methyl) to the electron-withdrawing one (CF3, 2,6-bis(trifluoromethyl)phenyl) on the electronic structure of the reaction intermediates has also been investigated. An alternative cyclic ferric peracetate complex is obtained, indicating that the substituents at the pyridine ring of PDP ligands have significant impacts on the electronic structure of the oxidants.
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116
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Chen X, Gao B, Su Y, Huang H. Enantioselective Epoxidation of Electron-Deficient Alkenes Catalyzed by Manganese Complexes with Chiral N4
Ligands Derived from Rigid Chiral Diamines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700541] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiangning Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Bao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry; University of Science and Technology of China; Hefei 230026 People's Republic of China
| | - Yijin Su
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
- Hefei National Laboratory for Physical Sciences at the Microscale; Department of Chemistry; University of Science and Technology of China; Hefei 230026 People's Republic of China
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117
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Cusso O, Giuliano MW, Ribas X, Miller SJ, Costas M. A Bottom Up Approach Towards Artificial Oxygenases by Combining Iron Coordination Complexes and Peptides. Chem Sci 2017; 8:3660-3667. [PMID: 29270284 PMCID: PMC5734052 DOI: 10.1039/c7sc00099e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The combination of peptides and a chiral iron coordination complex catalyzes high yield highly asymmetric epoxidation with aqueous hydrogen peroxide.
Supramolecular systems resulting from the combination of peptides and a chiral iron coordination complex catalyze asymmetric epoxidation with aqueous hydrogen peroxide, providing good to excellent yields and high enantioselectivities in short reaction times. The peptide is shown to play a dual role; the terminal carboxylic acid assists the iron center in the efficient H2O2 activation step, while its β-turn structure is crucial to induce high enantioselectivity in the oxygen delivering step. The high level of stereoselection (84–92% ee) obtained by these supramolecular catalysts in the epoxidation of 1,1′-alkyl ortho-substituted styrenes, a notoriously challenging class of substrates for asymmetric catalysis, is not attainable with any other epoxidation methodology described so far. The current work, combining an iron center ligated to N and O based ligands, and a peptide scaffold that shapes the second coordination sphere, may be seen as a bottom up approach towards the design of artificial oxygenases.
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Affiliation(s)
- Olaf Cusso
- Institut de Química Computational i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - Michael W Giuliano
- Department of Chemistry and Biochemistry, College of Charleston, South Carolina, United States
| | - Xavi Ribas
- Institut de Química Computational i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - Scott J Miller
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
| | - Miquel Costas
- Institut de Química Computational i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
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118
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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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119
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120
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Oxidation of alkane and alkene moieties with biologically inspired nonheme iron catalysts and hydrogen peroxide: from free radicals to stereoselective transformations. J Biol Inorg Chem 2017; 22:425-452. [DOI: 10.1007/s00775-016-1434-z] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/27/2016] [Indexed: 11/26/2022]
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121
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Miao C, Yan X, Xu D, Xia C, Sun W. Bioinspired Manganese Complexes and Graphene Oxide Synergistically Catalyzed Asymmetric Epoxidation of Olefins with Aqueous Hydrogen Peroxide. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600848] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chengxia Miao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, and Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Xingbin Yan
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, and Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Daqian Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, and Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, and Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, and Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 People's Republic of China
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122
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Wang W, Sun Q, Xu D, Xia C, Sun W. Asymmetric Epoxidation of Olefins with H2O2Catalyzed by a Bioinspired Aminopyridine N4 Iron Complex. ChemCatChem 2017. [DOI: 10.1002/cctc.201601293] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenfang Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation and Suzhou Research Institute of Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Qiangsheng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation and Suzhou Research Institute of Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| | - Daqian Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation and Suzhou Research Institute of Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation and Suzhou Research Institute of Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P.R. China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation and Suzhou Research Institute of Lanzhou Institute of Chemical Physics (LICP); Chinese Academy of Sciences; Lanzhou 730000 P.R. China
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123
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Ashokkumar V, Siva A. One-pot synthesis of α,β-epoxy ketones through domino reaction between alkenes and aldehydes catalyzed by proline based chiral organocatalysts. Org Biomol Chem 2017; 15:2551-2561. [DOI: 10.1039/c7ob00031f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A proline based metal free organocatalysts developed by new approach for the synthesis of epoxide derivatives through domino reaction. This domino reaction allows the direct access to epoxide from various alkene and aldehyde through C–H functionalization and C–C/C–O bond formation. The catalytic efficiencies of organocatalysts were also determined by domino reaction with very good yield (up to 95 %) and ee's (up to 99 %).
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Affiliation(s)
- Veeramanoharan Ashokkumar
- Supramolecular and Organometallic Chemistry Lab
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Ayyanar Siva
- Supramolecular and Organometallic Chemistry Lab
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
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124
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Zima AM, Lyakin OY, Ottenbacher RV, Bryliakov KP, Talsi EP. Iron-Catalyzed Enantioselective Epoxidations with Various Oxidants: Evidence for Different Active Species and Epoxidation Mechanisms. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02851] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexandra M. Zima
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Oleg Y. Lyakin
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 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
| | - Evgenii P. Talsi
- Novosibirsk State University, Pirogova 2, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
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125
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Shen D, Saracini C, Lee YM, Sun W, Fukuzumi S, Nam W. Photocatalytic Asymmetric Epoxidation of Terminal Olefins Using Water as an Oxygen Source in the Presence of a Mononuclear Non-Heme Chiral Manganese Complex. J Am Chem Soc 2016; 138:15857-15860. [DOI: 10.1021/jacs.6b10836] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Duyi Shen
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Claudio Saracini
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Yong-Min Lee
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wei Sun
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shunichi Fukuzumi
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
- Faculty
of Science and Engineering, Meijo University, SENTAN, Japan Science and Technology Agency (JST), Nagoya, Aichi 468-8502, Japan
| | - Wonwoo Nam
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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126
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Olivo G, Cussó O, Costas M. Biologically Inspired C−H and C=C Oxidations with Hydrogen Peroxide Catalyzed by Iron Coordination Complexes. Chem Asian J 2016; 11:3148-3158. [DOI: 10.1002/asia.201601170] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 09/26/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Giorgio Olivo
- Departament de Química I Institut de Química Computacional i Catàlisi (IQCC); Universitat de Girona; Facultat de Ciències, Campus de Montilivi; Girona 17071 Spain
| | - Olaf Cussó
- Departament de Química I Institut de Química Computacional i Catàlisi (IQCC); Universitat de Girona; Facultat de Ciències, Campus de Montilivi; Girona 17071 Spain
| | - Miquel Costas
- Departament de Química I Institut de Química Computacional i Catàlisi (IQCC); Universitat de Girona; Facultat de Ciències, Campus de Montilivi; Girona 17071 Spain
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127
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Esarey SL, Holland JC, Bartlett BM. Determining the Fate of a Non-Heme Iron Oxidation Catalyst Under Illumination, Oxygen, and Acid. Inorg Chem 2016; 55:11040-11049. [DOI: 10.1021/acs.inorgchem.6b01538] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Samuel L. Esarey
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Joel C. Holland
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Bart M. Bartlett
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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128
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Lorenz S, Plietker B. Selectivity Trends in Olefin Epoxidations Catalyzed by (NNNN)Manganese(+II) Complexes using Trifluoroethanol as the Solvent. ChemCatChem 2016. [DOI: 10.1002/cctc.201600755] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Samuel Lorenz
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Bernd Plietker
- Institut für Organische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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129
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Yaremenko IA, Vil’ VA, Demchuk DV, Terent’ev AO. Rearrangements of organic peroxides and related processes. Beilstein J Org Chem 2016; 12:1647-748. [PMID: 27559418 PMCID: PMC4979652 DOI: 10.3762/bjoc.12.162] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 07/14/2016] [Indexed: 12/17/2022] Open
Abstract
This review is the first to collate and summarize main data on named and unnamed rearrangement reactions of peroxides. It should be noted, that in the chemistry of peroxides two types of processes are considered under the term rearrangements. These are conventional rearrangements occurring with the retention of the molecular weight and transformations of one of the peroxide moieties after O-O-bond cleavage. Detailed information about the Baeyer-Villiger, Criegee, Hock, Kornblum-DeLaMare, Dakin, Elbs, Schenck, Smith, Wieland, and Story reactions is given. Unnamed rearrangements of organic peroxides and related processes are also analyzed. The rearrangements and related processes of important natural and synthetic peroxides are discussed separately.
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Affiliation(s)
- Ivan A Yaremenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Dmitry V Demchuk
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Alexander O Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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130
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Zima AM, Lyakin OY, Ottenbacher RV, Bryliakov KP, Talsi EP. Dramatic Effect of Carboxylic Acid on the Electronic Structure of the Active Species in Fe(PDP)-Catalyzed Asymmetric Epoxidation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01473] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Alexandra M. Zima
- Novosibirsk State University, Pirogova
2, Novosibirsk 630090, Russian Federation
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Oleg Y. Lyakin
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
| | - Roman V. Ottenbacher
- Novosibirsk State University, Pirogova
2, Novosibirsk 630090, Russian Federation
| | | | - Evgenii P. Talsi
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation
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131
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Dutta AK, Samanta S, Dutta S, Lucas CR, Dawe LN, Biswas P, Adhikary B. Iron(III) complexes of 2-(1H-benzo[d]imidazol-2-yl)phenol and acetate or nitrate as catalysts for epoxidation of olefins with hydrogen peroxide. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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132
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Octa-1,7-diene-4,5-diamine Derivatives: Useful Intermediates for the Stereoselective Synthesis of Nitrogen Heterocycles and Ligands for Asymmetric Catalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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133
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Olmo F, Costas M, Marín C, Rosales MJ, Martín-Escolano R, Cussó O, Gutierrez-Sánchez R, Ribas X, Sánchez-Moreno M. Tetradentate polyamines as efficient metallodrugs for Chagas disease treatment in murine model. J Chemother 2016; 29:83-93. [DOI: 10.1080/1120009x.2016.1190536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Francisco Olmo
- Departamento de Parasitología, Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios De Granada/Universidad de Granada, Granada, Spain
| | - Miquel Costas
- QBIS Research Group, Departament de Química, Institut de Quimica Computacional i Catàlisi (IQCC), Universitat de Girona, Campus de Montilivi, E-17071, Girona, Spain
| | - Clotilde Marín
- Departamento de Parasitología, Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios De Granada/Universidad de Granada, Granada, Spain
| | - Maria José Rosales
- Departamento de Parasitología, Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios De Granada/Universidad de Granada, Granada, Spain
| | - Rubén Martín-Escolano
- Departamento de Parasitología, Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios De Granada/Universidad de Granada, Granada, Spain
| | - Olaf Cussó
- QBIS Research Group, Departament de Química, Institut de Quimica Computacional i Catàlisi (IQCC), Universitat de Girona, Campus de Montilivi, E-17071, Girona, Spain
| | | | - Xavi Ribas
- QBIS Research Group, Departament de Química, Institut de Quimica Computacional i Catàlisi (IQCC), Universitat de Girona, Campus de Montilivi, E-17071, Girona, Spain
| | - Manuel Sánchez-Moreno
- Departamento de Parasitología, Instituto de Investigación Biosanitaria (ibs.GRANADA), Hospitales Universitarios De Granada/Universidad de Granada, Granada, Spain
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134
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Moretti RA, Du Bois J, Stack TDP. Manganese(II)/Picolinic Acid Catalyst System for Epoxidation of Olefins. Org Lett 2016; 18:2528-31. [DOI: 10.1021/acs.orglett.6b00518] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ross A. Moretti
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - J. Du Bois
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - T. Daniel P. Stack
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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135
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In vitro and in vivo identification of tetradentated polyamine complexes as highly efficient metallodrugs against Trypanosoma cruzi. Exp Parasitol 2016; 164:20-30. [DOI: 10.1016/j.exppara.2016.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 12/20/2022]
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136
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Serrano-Plana J, Aguinaco A, Belda R, García-España E, Basallote MG, Company A, Costas M. Exceedingly Fast Oxygen Atom Transfer to Olefins via a Catalytically Competent Nonheme Iron Species. Angew Chem Int Ed Engl 2016; 55:6310-4. [DOI: 10.1002/anie.201601396] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 03/21/2016] [Indexed: 10/21/2022]
Affiliation(s)
- Joan Serrano-Plana
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
| | - Almudena Aguinaco
- Universidad de Cádiz; Facultad de Ciencias; Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica; Apdo. 40, 11510 Puerto Real Cádiz Spain
| | - Raquel Belda
- Instituto de Ciencia Molecular (ICMol); Universidad de Valencia; C/Catedrático José Beltrán, Paterna Valencia 2 46980 Spain
| | - Enrique García-España
- Instituto de Ciencia Molecular (ICMol); Universidad de Valencia; C/Catedrático José Beltrán, Paterna Valencia 2 46980 Spain
| | - Manuel G. Basallote
- Universidad de Cádiz; Facultad de Ciencias; Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica; Apdo. 40, 11510 Puerto Real Cádiz Spain
| | - Anna Company
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
| | - Miquel Costas
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
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137
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Serrano-Plana J, Aguinaco A, Belda R, García-España E, Basallote MG, Company A, Costas M. Exceedingly Fast Oxygen Atom Transfer to Olefins via a Catalytically Competent Nonheme Iron Species. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601396] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joan Serrano-Plana
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
| | - Almudena Aguinaco
- Universidad de Cádiz; Facultad de Ciencias; Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica; Apdo. 40, 11510 Puerto Real Cádiz Spain
| | - Raquel Belda
- Instituto de Ciencia Molecular (ICMol); Universidad de Valencia; C/Catedrático José Beltrán, Paterna Valencia 2 46980 Spain
| | - Enrique García-España
- Instituto de Ciencia Molecular (ICMol); Universidad de Valencia; C/Catedrático José Beltrán, Paterna Valencia 2 46980 Spain
| | - Manuel G. Basallote
- Universidad de Cádiz; Facultad de Ciencias; Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica; Apdo. 40, 11510 Puerto Real Cádiz Spain
| | - Anna Company
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
| | - Miquel Costas
- Grup de Química Bioinorgànica; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional I Catàlisi (IQCC); Departament de Química; Universitat de Girona; Campus Montilivi 17071 Girona Catalonia, Spain
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138
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Olivo G, Lanzalunga O, Di Stefano S. Non-Heme Imine-Based Iron Complexes as Catalysts for Oxidative Processes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501024] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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139
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Cussó O, Cianfanelli M, Ribas X, Klein Gebbink RJM, Costas M. Iron Catalyzed Highly Enantioselective Epoxidation of Cyclic Aliphatic Enones with Aqueous H2O2. J Am Chem Soc 2016; 138:2732-8. [DOI: 10.1021/jacs.5b12681] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Olaf Cussó
- QBIS
Research Group, Institut de Química Computacional i Catàlisi
(IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia Spain
| | - Marco Cianfanelli
- QBIS
Research Group, Institut de Química Computacional i Catàlisi
(IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia Spain
| | - Xavi Ribas
- QBIS
Research Group, Institut de Química Computacional i Catàlisi
(IQCC) and Departament de Química, Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia Spain
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - 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
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140
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Affiliation(s)
- Liang Hong
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
| | - Wangsheng Sun
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Dongxu Yang
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Guofeng Li
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
| | - Rui Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006 China
- Key
Laboratory of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, 730000 China
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141
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Shen D, Qiu B, Xu D, Miao C, Xia C, Sun W. Enantioselective Epoxidation of Olefins with H2O2 Catalyzed by Bioinspired Aminopyridine Manganese Complexes. Org Lett 2016; 18:372-5. [DOI: 10.1021/acs.orglett.5b03309] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Duyi Shen
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Bin Qiu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Daqian Xu
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Chengxia Miao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Chungu Xia
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Wei Sun
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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142
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Kück JW, Reich RM, Kühn FE. Molecular Epoxidation Reactions Catalyzed by Rhenium, Molybdenum, and Iron Complexes. CHEM REC 2016; 16:349-64. [DOI: 10.1002/tcr.201500233] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Jens W. Kück
- Department of Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstr. 4 D-85747 Garching bei München Germany
| | - Robert M. Reich
- Department of Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstr. 4 D-85747 Garching bei München Germany
| | - Fritz E. Kühn
- Department of Chemistry and Catalysis Research Center; Technische Universität München (TUM); Lichtenbergstr. 4 D-85747 Garching bei München Germany
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143
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Miao C, Wang B, Wang Y, Xia C, Lee YM, Nam W, Sun W. Proton-Promoted and Anion-Enhanced Epoxidation of Olefins by Hydrogen Peroxide in the Presence of Nonheme Manganese Catalysts. J Am Chem Soc 2016; 138:936-43. [DOI: 10.1021/jacs.5b11579] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chengxia Miao
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Bin Wang
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Yong Wang
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chungu Xia
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yong-Min Lee
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wonwoo Nam
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Wei Sun
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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144
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Raheem Keeri A, Justyniak I, Jurczak J, Lewiński J. Quest for Efficient Catalysts based on Zinctert-Butyl Peroxides for Asymmetric Epoxidation of Enones:C2-vs C1-Symmetric Auxiliaries. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500764] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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145
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Olivo G, Nardi M, Vìdal D, Barbieri A, Lapi A, Gómez L, Lanzalunga O, Costas M, Di Stefano S. C-H Bond Oxidation Catalyzed by an Imine-Based Iron Complex: A Mechanistic Insight. Inorg Chem 2015; 54:10141-52. [PMID: 26457760 DOI: 10.1021/acs.inorgchem.5b01500] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A family of imine-based nonheme iron(II) complexes (LX)2Fe(OTf)2 has been prepared, characterized, and employed as C-H oxidation catalysts. Ligands LX (X = 1, 2, 3, and 4) stand for tridentate imine ligands resulting from spontaneous condensation of 2-pycolyl-amine and 4-substituted-2-picolyl aldehydes. Fast and quantitative formation of the complex occurs just upon mixing aldehyde, amine, and Fe(OTf)2 in a 2:2:1 ratio in acetonitrile solution. The solid-state structures of (L1)2Fe(OTf)(ClO4) and (L3)2Fe(OTf)2 are reported, showing a low-spin octahedral iron center, with the ligands arranged in a meridional fashion. (1)H NMR analyses indicate that the solid-state structure and spin state is retained in solution. These analyses also show the presence of an amine-imine tautomeric equilibrium. (LX)2Fe(OTf)2 efficiently catalyze the oxidation of alkyl C-H bonds employing H2O2 as a terminal oxidant. Manipulation of the electronic properties of the imine ligand has only a minor impact on efficiency and selectivity of the oxidative process. A mechanistic study is presented, providing evidence that C-H oxidations are metal-based. Reactions occur with stereoretention at the hydroxylated carbon and selectively at tertiary over secondary C-H bonds. Isotopic labeling analyses show that H2O2 is the dominant origin of the oxygen atoms inserted in the oxygenated product. Experimental evidence is provided that reactions involve initial oxidation of the complexes to the ferric state, and it is proposed that a ligand arm dissociates to enable hydrogen peroxide binding and activation. Selectivity patterns and isotopic labeling studies strongly suggest that activation of hydrogen peroxide occurs by heterolytic O-O cleavage, without the assistance of a cis-binding water or alkyl carboxylic acid. The sum of these observations provides sound evidence that controlled activation of H2O2 at (LX)2Fe(OTf)2 differs from that occurring in biomimetic iron catalysts described to date.
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Affiliation(s)
- Giorgio Olivo
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy.,Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus de Montilivi, 17071 Girona, Spain
| | - Martina Nardi
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy
| | - Diego Vìdal
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus de Montilivi, 17071 Girona, Spain
| | - Alessia Barbieri
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy
| | - Andrea Lapi
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy.,Consortium of Chemical Catalysis and Reactivity, CIRCC Interuniversity , Via Celso Ulpiani 27, 70126 Bari, Italy
| | - Laura Gómez
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus de Montilivi, 17071 Girona, Spain.,Serveis Tècnics de Recerca (STR), Universitat de Girona , Parc Cientı́fic i Tecnològic, E-17003 Girona, Spain
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy.,Consortium of Chemical Catalysis and Reactivity, CIRCC Interuniversity , Via Celso Ulpiani 27, 70126 Bari, Italy
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus de Montilivi, 17071 Girona, Spain
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" and Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185 Rome, Italy.,Consortium of Chemical Catalysis and Reactivity, CIRCC Interuniversity , Via Celso Ulpiani 27, 70126 Bari, Italy
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146
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Bennov RR, Berko DA, Burgess SA, DiMeglio JL, Kalman SE, Ludlum JM, Nash BW, Palomaki PK, Perlow DB, Rubin JA, Saunders JE, Scarselletta SV, Kastner ME, Pike RD, Sabat M, Keane JM. Molybdenum complexes of chiral C2-symmetric picchxn-type ligands: Synthesis, characterization, and structural studies. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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147
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Soler M, Figueras E, Serrano-Plana J, González-Bártulos M, Massaguer A, Company A, Martínez MÁ, Malina J, Brabec V, Feliu L, Planas M, Ribas X, Costas M. Design, Preparation, and Characterization of Zn and Cu Metallopeptides Based On Tetradentate Aminopyridine Ligands Showing Enhanced DNA Cleavage Activity. Inorg Chem 2015; 54:10542-58. [PMID: 26503063 DOI: 10.1021/acs.inorgchem.5b01680] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The conjugation of redox-active complexes that can function as chemical nucleases to cationic tetrapeptides is pursued in this work in order to explore the expected synergistic effect between these two elements in DNA oxidative cleavage. Coordination complexes of biologically relevant first row metal ions, such as Zn(II) or Cu(II), containing the tetradentate ligands 1,4-dimethyl-7-(2-pyridylmethyl)-1,4,7-triazacyclononane ((Me2)PyTACN) and (2S,2S')-1,1'-bis(pyrid-2-ylmethyl)-2,2'-bipyrrolidine ((S,S')-BPBP) have been linked to a cationic LKKL tetrapeptide sequence. Solid-phase synthesis of the peptide-tetradentate ligand conjugates has been developed, and the preparation and characterization of the corresponding metallotetrapeptides is described. The DNA cleavage activity of Cu and Zn metallopeptides has been evaluated and compared to their metal binding conjugates as well as to the parent complexes and ligands. Very interestingly, the oxidative Cu metallopeptides 1Cu and 2Cu show an enhanced activity compared to the parent complexes, [Cu(PyTACN)](2+) and [Cu(BPBP)](2+), respectively. Under optimized conditions, 1Cu displays an apparent pseudo first-order rate constant (kobs) of ∼0.16 min(-1) with a supercoiled DNA half-life time (t1/2) of ∼4.3 min. On the other hand, kobs for 2Cu has been found to be ∼0.11 min(-1) with t1/2 ≈ 6.4 min. Hence, these results point out that the DNA cleavage activities promoted by the metallopeptides 1Cu and 2Cu render ∼4-fold and ∼23 rate accelerations in comparison with their parent Cu complexes. Additional binding assays and mechanistic studies demonstrate that the enhanced cleavage activities are explained by the presence of the cationic LKKL tetrapeptide sequence, which induces an improved binding affinity to the DNA, thus bringing the metal ion, which is responsible for cleavage, in close proximity.
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Affiliation(s)
- Marta Soler
- QBIS-CAT Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain.,LIPPSO, Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Eduard Figueras
- LIPPSO, Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Joan Serrano-Plana
- QBIS-CAT Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Marta González-Bártulos
- Biochemistry of Cancer Group, Biochemistry and Molecular Biology Unit, Department de Química and Department of Biology, Universitat de Girona , Campus Montilivi, 17071 Girona, Catalunya, Spain
| | - Anna Massaguer
- Biochemistry of Cancer Group, Biochemistry and Molecular Biology Unit, Department de Química and Department of Biology, Universitat de Girona , Campus Montilivi, 17071 Girona, Catalunya, Spain
| | - Anna Company
- QBIS-CAT Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Ma Ángeles Martínez
- Biochemistry of Cancer Group, Biochemistry and Molecular Biology Unit, Department de Química and Department of Biology, Universitat de Girona , Campus Montilivi, 17071 Girona, Catalunya, Spain
| | - Jaroslav Malina
- Institute of Biophysics, Academy of Sciences of the Czech Republic , v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic , v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Lidia Feliu
- LIPPSO, Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Marta Planas
- LIPPSO, Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Xavi Ribas
- QBIS-CAT Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
| | - Miquel Costas
- QBIS-CAT Research Group, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona , Campus Montilivi, E-17071 Girona, Catalonia, Spain
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148
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Oloo WN, Que L. Bioinspired Nonheme Iron Catalysts for C-H and C═C Bond Oxidation: Insights into the Nature of the Metal-Based Oxidants. Acc Chem Res 2015; 48:2612-21. [PMID: 26280131 DOI: 10.1021/acs.accounts.5b00053] [Citation(s) in RCA: 270] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recent efforts to design synthetic iron catalysts for the selective and efficient oxidation of C-H and C═C bonds have been inspired by a versatile family of nonheme iron oxygenases. These bioinspired nonheme (N4)Fe(II) catalysts use H2O2 to oxidize substrates with high regio- and stereoselectivity, unlike in Fenton chemistry where highly reactive but unselective hydroxyl radicals are produced. In this Account, we highlight our efforts to shed light on the nature of metastable peroxo intermediates, which we have trapped at -40 °C, in the reactions of the iron catalyst with H2O2 under various conditions and the high-valent species derived therefrom. Under the reaction conditions that originally led to the discovery of this family of catalysts, we have characterized spectroscopically an Fe(III)-OOH intermediate (EPR g(max) = 2.19) that leads to the hydroxylation of substrate C-H bonds or the epoxidation and cis-dihydroxylation of C═C bonds. Surprisingly, these organic products show incorporation of (18)O from H2(18)O, thereby excluding the possibility of a direct attack of the Fe(III)-OOH intermediate on the substrate. Instead, a water-assisted mechanism is implicated in which water binding to the iron(III) center at a site adjacent to the hydroperoxo ligand promotes heterolytic cleavage of the O-O bond to generate an Fe(V)(O)(OH) oxidant. This mechanism is supported by recent kinetic studies showing that the Fe(III)-OOH intermediate undergoes exponential decay at a rate enhanced by the addition of water and retarded by replacement of H2O with D2O, as well as mass spectral evidence for the Fe(V)(O)(OH) species obtained by the Costas group. The nature of the peroxo intermediate changes significantly when the reactions are carried out in the presence of carboxylic acids. Under these conditions, spectroscopic studies support the formation of a (κ(2)-acylperoxo)iron(III) species (EPR g(max) = 2.58) that decays at -40 °C in the absence of substrate to form an oxoiron(IV) byproduct, along with a carboxyl radical that readily loses CO2. The alkyl radical thus formed either reacts with O2 to form benzaldehyde (as in the case of PhCH2COOH) or rebounds with the incipient Fe(IV)(O) moiety to form phenol (as in the case of C6F5COOH). Substrate addition leads to its 2-e(-) oxidation and inhibits these side reactions. The emerging mechanistic picture, supported by DFT calculations of Wang and Shaik, describes a rather flat reaction landscape in which the (κ(2)-acylperoxo)iron(III) intermediate undergoes O-O bond homolysis reversibly to form an Fe(IV)(O)((•)OC(O)R) species that decays to Fe(IV)(O) and RCO2(•) or isomerizes to its Fe(V)(O)(O2CR) electromer, which effects substrate oxidation. Another short-lived S = 1/2 species just discovered by Talsi that has much less g-anisotropy (EPR g(max) = 2.07) may represent either of these postulated high-valent intermediates.
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Affiliation(s)
- Williamson N. Oloo
- Department of Chemistry and
Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Lawrence Que
- Department of Chemistry and
Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455, United States
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149
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González-Bártulos M, Aceves-Luquero C, Qualai J, Cussó O, Martínez MA, Fernández de Mattos S, Menéndez JA, Villalonga P, Costas M, Ribas X, Massaguer A. Pro-Oxidant Activity of Amine-Pyridine-Based Iron Complexes Efficiently Kills Cancer and Cancer Stem-Like Cells. PLoS One 2015; 10:e0137800. [PMID: 26368127 PMCID: PMC4569415 DOI: 10.1371/journal.pone.0137800] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 08/21/2015] [Indexed: 12/22/2022] Open
Abstract
Differential redox homeostasis in normal and malignant cells suggests that pro-oxidant-induced upregulation of cellular reactive oxygen species (ROS) should selectively target cancer cells without compromising the viability of untransformed cells. Consequently, a pro-oxidant deviation well-tolerated by nonmalignant cells might rapidly reach a cell-death threshold in malignant cells already at a high setpoint of constitutive oxidative stress. To test this hypothesis, we took advantage of a selected number of amine-pyridine-based Fe(II) complexes that operate as efficient and robust oxidation catalysts of organic substrates upon reaction with peroxides. Five of these Fe(II)-complexes and the corresponding aminopyridine ligands were selected to evaluate their anticancer properties. We found that the iron complexes failed to display any relevant activity, while the corresponding ligands exhibited significant antiproliferative activity. Among the ligands, none of which were hemolytic, compounds 1, 2 and 5 were cytotoxic in the low micromolar range against a panel of molecularly diverse human cancer cell lines. Importantly, the cytotoxic activity profile of some compounds remained unaltered in epithelial-to-mesenchymal (EMT)-induced stable populations of cancer stem-like cells, which acquired resistance to the well-known ROS inducer doxorubicin. Compounds 1, 2 and 5 inhibited the clonogenicity of cancer cells and induced apoptotic cell death accompanied by caspase 3/7 activation. Flow cytometry analyses indicated that ligands were strong inducers of oxidative stress, leading to a 7-fold increase in intracellular ROS levels. ROS induction was associated with their ability to bind intracellular iron and generate active coordination complexes inside of cells. In contrast, extracellular complexation of iron inhibited the activity of the ligands. Iron complexes showed a high proficiency to cleave DNA through oxidative-dependent mechanisms, suggesting a likely mechanism of cytotoxicity. In summary, we report that, upon chelation of intracellular iron, the pro-oxidant activity of amine-pyrimidine-based iron complexes efficiently kills cancer and cancer stem-like cells, thus providing functional evidence for an efficient family of redox-directed anti-cancer metallodrugs.
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Affiliation(s)
- Marta González-Bártulos
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
| | - Clara Aceves-Luquero
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Jamal Qualai
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
| | - Olaf Cussó
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
| | - Mª Angeles Martínez
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
| | - Silvia Fernández de Mattos
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Javier A. Menéndez
- Translational Research Laboratory, Catalan Institute of Oncology (ICO), Girona, Catalunya, Spain
- Girona Biomedical Research Institute (IDIBGI), Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Priam Villalonga
- Departament de Biologia Fonamental and Institut Universitari d’Investigació en Ciències de la Salut (IUNICS), Universitat de les Illes Balears, Illes Balears, Spain
| | - Miquel Costas
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Xavi Ribas
- Department of Chemistry, University of Girona, Girona, Catalunya, Spain
- Institut de Química Computacional i Catàlisi (IQCC), University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
| | - Anna Massaguer
- Department of Biology, University of Girona, Girona, Catalunya, Spain
- * E-mail: (AM); (XR); (MC); (JAM)
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Cussó O, Ribas X, Costas M. Biologically inspired non-heme iron-catalysts for asymmetric epoxidation; design principles and perspectives. Chem Commun (Camb) 2015; 51:14285-98. [PMID: 26299813 DOI: 10.1039/c5cc05576h] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Iron coordination complexes with nitrogen and oxygen donor ligands have long since been known to react with peroxides producing powerful oxidizing species. These compounds can be regarded as simple structural and functional models of the active sites of non-heme iron dependent oxygenases. Research efforts during the last decade have uncovered basic principles and structural coordination chemistry motifs that permit us to control the chemistry that evolves when these iron complexes react with peroxides, in order to provide powerful metal-based, but at the same time selective, oxidising agents. Oxidation methodologies with synthetic value are currently emerging from this approach. The current review focuses on asymmetric epoxidation, a reaction which has large value in synthesis, and where iron/H2O2 based methodologies may represent not only a sustainable choice, but may also expand the scope of state-of-the-art oxidation methods. Basic principles that underlay catalyst design as well as H2O2 activation are discussed, whilst limitations and future perspectives are also reviewed.
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Affiliation(s)
- Olaf Cussó
- Institut de Química Computacional I Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Facultat de Ciéncies, Campus de Montilivi, 17071, Girona, Catalonia, Spain.
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