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Jana RD, Das A, Paine TK. Enhancing Chemo- and Stereoselectivity in C-H Bond Oxygenation with H 2O 2 by Nonheme High-Spin Iron Catalysts: The Role of Lewis Acid and Multimetal Centers. Inorg Chem 2021; 60:5969-5979. [PMID: 33784082 DOI: 10.1021/acs.inorgchem.1c00397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spin states of iron often direct the selectivity in oxidation catalysis by iron complexes using hydrogen peroxide (H2O2) on an oxidant. While low-spin iron(III) hydroperoxides display stereoselective C-H bond hydroxylation, the reactions are nonstereoselective with high-spin iron(II) catalysts. The catalytic studies with a series of high-spin iron(II) complexes of N4 ligands with H2O2 and Sc3+ reported here reveal that the Lewis acid promotes catalytic C-H bond hydroxylation with high chemo- and stereoselectivity. This reactivity pattern is observed with iron(II) complexes containing two cis-labile sites. The enhanced selectivity for C-H bond hydroxylation catalyzed by the high-spin iron(II) complexes in the presence of Sc3+ parallels that of the low-spin iron catalysts. Furthermore, the introduction of multimetal centers enhances the activity and selectivity of the iron catalyst. The study provides insights into the development of peroxide-dependent bioinspired catalysts for the selective oxygenation of C-H bonds without the restriction of using iron complexes of strong-field ligands.
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Affiliation(s)
- Rahul Dev Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Abhishek Das
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Tapan Kanti Paine
- School of Chemical Sciences, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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Abstract
The review describes articles that provide data on the synthesis and study of the properties of catalysts for the oxidation of alkanes, olefins, and alcohols. These catalysts are polynuclear complexes of iron, copper, osmium, nickel, manganese, cobalt, vanadium. Such complexes for example are: [Fe2(HPTB)(m-OH)(NO3)2](NO3)2·CH3OH·2H2O, where HPTB-¼N,N,N0,N0-tetrakis(2-benzimidazolylmethyl)-2-hydroxo-1,3-diaminopropane; complex [(PhSiO1,5)6]2[CuO]4[NaO0.5]4[dppmO2]2, where dppm-1,1-bis(diphenylphosphino)methane; (2,3-η-1,4-diphenylbut-2-en-1,4-dione)undecacarbonyl triangulotriosmium; phenylsilsesquioxane [(PhSiO1.5)10(CoO)5(NaOH)]; bi- and tri-nuclear oxidovanadium(V) complexes [{VO(OEt)(EtOH)}2(L2)] and [{VO(OMe)(H2O)}3(L3)]·2H2O (L2 = bis(2-hydroxybenzylidene)terephthalohydrazide and L3 = tris(2-hydroxybenzylidene)benzene-1,3,5-tricarbohydrazide); [Mn2L2O3][PF6]2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). For comparison, articles are introduced describing catalysts for the oxidation of alkanes and alcohols with peroxides, which are simple metal salts or mononuclear metal complexes. In many cases, polynuclear complexes exhibit higher activity compared to mononuclear complexes and exhibit increased regioselectivity, for example, in the oxidation of linear alkanes. The review contains a description of some of the mechanisms of catalytic reactions. Additionally presented are articles comparing the rates of oxidation of solvents and substrates under oxidizing conditions for various catalyst structures, which allows researchers to conclude about the nature of the oxidizing species. This review is focused on recent works, as well as review articles and own original studies of the authors.
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Recent advancement in oxidation or acceptorless dehydrogenation of alcohols to valorised products using manganese based catalysts. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213241] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Neshat A, Kakavand M, Osanlou F, Mastrorilli P, Schingaro E, Mesto E, Todisco S. Alcohol Oxidations by Schiff Base Manganese(III) Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Abdollah Neshat
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
| | - Meysam Kakavand
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
| | - Farzane Osanlou
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137‐66731 Iran
| | - Piero Mastrorilli
- DICATECh Department Politecnico di Bari Via Orabona, 4 70125 Bari Italy
| | - Emanuela Schingaro
- Dipartimento di Scienze della Terra e Geoambientali Università degli Studi di Bari “Aldo Moro” di Bari Via Orabona, 4 70125 Bari Italy
| | - Ernesto Mesto
- Dipartimento di Scienze della Terra e Geoambientali Università degli Studi di Bari “Aldo Moro” di Bari Via Orabona, 4 70125 Bari Italy
| | - Stefano Todisco
- DICATECh Department Politecnico di Bari Via Orabona, 4 70125 Bari Italy
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Lubov DP, Lyakin OY, Samsonenko DG, Rybalova TV, Talsi EP, Bryliakov KP. Palladium aminopyridine complexes catalyzed selective benzylic C–H oxidations with peracetic acid. Dalton Trans 2020; 49:11150-11156. [DOI: 10.1039/d0dt02247k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium complexes with tripodal ligands of the tpa family efficiently catalyze benzylic C–H oxidation of various substrates with peracetic acid, affording the corresponding ketones in high yields (up to 100%), at <1 mol% catalyst loadings.
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Affiliation(s)
- Dmitry P. Lubov
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- Novosibirsk 630090
| | - Oleg Yu. Lyakin
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- Novosibirsk 630090
| | - Denis G. Samsonenko
- Novosibirsk State University
- Novosibirsk 630090
- Russia
- Nikolaev Institute of Inorganic Chemistry
- Novosibirsk 630090
| | - Tatyana V. Rybalova
- Novosibirsk State University
- Novosibirsk 630090
- Russia
- Vorozhtsov Novosibirsk Institute of Organic Chemistry
- Novosibirsk 630090
| | - Evgenii P. Talsi
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- Novosibirsk 630090
| | - Konstantin P. Bryliakov
- Boreskov Institute of Catalysis
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- Novosibirsk 630090
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Jaiswal D, Yadava S. Synthesis and characterization of some novel Mn(III) glycinato complexes with catalytic applications. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1660961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Deepika Jaiswal
- Department of Chemistry, D.D.U. Gorakhpur University, Gorakhpur, India
| | - Sudha Yadava
- Department of Chemistry, D.D.U. Gorakhpur University, Gorakhpur, India
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Miao C, Li XX, Lee YM, Xia C, Wang Y, Nam W, Sun W. Manganese complex-catalyzed oxidation and oxidative kinetic resolution of secondary alcohols by hydrogen peroxide. Chem Sci 2017; 8:7476-7482. [PMID: 29163900 PMCID: PMC5676093 DOI: 10.1039/c7sc00891k] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 09/06/2017] [Indexed: 12/14/2022] Open
Abstract
The highly efficient catalytic oxidation and oxidative kinetic resolution (OKR) of secondary alcohols has been achieved using a synthetic manganese catalyst with low loading and hydrogen peroxide as an environmentally benign oxidant in the presence of a small amount of sulfuric acid as an additive. The product yields were high (up to 93%) for alcohol oxidation and the enantioselectivity was excellent (>90% ee) for the OKR of secondary alcohols. Mechanistic studies revealed that alcohol oxidation occurs via hydrogen atom (H-atom) abstraction from an α-CH bond of the alcohol substrate and a two-electron process by an electrophilic Mn-oxo species. Density functional theory calculations revealed the difference in reaction energy barriers for H-atom abstraction from the α-CH bonds of R- and S-enantiomers by a chiral high-valent manganese-oxo complex, supporting the experimental result from the OKR of secondary alcohols.
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Affiliation(s)
- Chengxia Miao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
- College of Chemistry and Material Science , Shandong Agricultural University , Tai'an 271018 , China
| | - Xiao-Xi Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
- Department of Chemistry and Nano Science , Ewha Womans University , Seoul 03760 , Korea .
| | - Yong-Min Lee
- Department of Chemistry and Nano Science , Ewha Womans University , Seoul 03760 , Korea .
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
| | - Yong Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
| | - Wonwoo Nam
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
- Department of Chemistry and Nano Science , Ewha Womans University , Seoul 03760 , Korea .
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation , Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP) , Chinese Academy of Sciences , Lanzhou 730000 , China .
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Talsi EP, Samsonenko DG, Bryliakov KP. Asymmetric Autoamplification in the Oxidative Kinetic Resolution of Secondary Benzylic Alcohols Catalyzed by Manganese Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700438] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Evgenii P. Talsi
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Boreskov Institute of Catalysis; Pr. Lavrentieva 5 Novosibirsk 630090 Russian Federation
| | - Denis G. Samsonenko
- Novosibirsk State University; Pirogova 2 Novosibirsk 630090 Russian Federation
- Nikolaev Institute of Inorganic Chemistry; Pr. Lavrentieva 3 Novosibirsk 630090 Russian Federation
| | - 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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Rostami A, Pourshiani O, Darvishi N, Atashkar B. Efficient and green oxidation of alcohols with tert -butyl hydrogenperoxide catalyzed by a recyclable magnetic core-shell nanoparticle-supported oxo-vanadium ephedrine complex. CR CHIM 2017. [DOI: 10.1016/j.crci.2016.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mishra AK, Moorthy JN. Mechanochemical catalytic oxidations in the solid state with in situ-generated modified IBX from 3,5-di-tert-butyl-2-iodobenzoic acid (DTB-IA)/Oxone. Org Chem Front 2017. [DOI: 10.1039/c6qo00588h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly reactive IBX – generated from o-iodobenzoic acid and Oxone – permits a variety of catalytic oxidations in the solid state.
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Saisaha P, Dong JJ, Meinds TG, de Boer JW, Hage R, Mecozzi F, Kasper JB, Browne WR. Mechanism of Alkene, Alkane, and Alcohol Oxidation with H2O2 by an in Situ Prepared MnII/Pyridine-2-carboxylic Acid Catalyst. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00320] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pattama Saisaha
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Jia Jia Dong
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Tim G. Meinds
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Johannes W. de Boer
- Catexel Ltd, BioPartner Center Leiden, Galileiweg 8, 2333 BD Leiden, The Netherlands
| | - Ronald Hage
- Catexel Ltd, BioPartner Center Leiden, Galileiweg 8, 2333 BD Leiden, The Netherlands
| | - Francesco Mecozzi
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Johann B. Kasper
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
| | - Wesley R. Browne
- Molecular
Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of
Mathematics and Natural Sciences, University of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
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Sheet D, Paine TK. Aerobic alcohol oxidation and oxygen atom transfer reactions catalyzed by a nonheme iron(ii)-α-keto acid complex. Chem Sci 2016; 7:5322-5331. [PMID: 30155184 PMCID: PMC6020522 DOI: 10.1039/c6sc01476c] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 04/23/2016] [Indexed: 11/21/2022] Open
Abstract
An iron(ii)-benzoylformate complex of a monoanionic facial tridentate ligand catalyzes the aerobic oxidation of sulfides to sulfoxides, alkenes to epoxides, and alcohols to the corresponding carbonyl compounds.
α-Ketoglutarate-dependent enzymes catalyze many important biological oxidation/oxygenation reactions. Iron(iv)–oxo intermediates have been established as key oxidants in these oxidation reactions. While most reported model iron(ii)–α-keto acid complexes exhibit stoichiometric reactivity, selective oxidation of substrates with dioxygen catalyzed by biomimetic iron(ii)–α-keto acid complexes remains unexplored. In this direction, we have investigated the ability of an iron(ii) complex [(TpPh,Me)FeII(BF)] (1) (TpPh,Me = hydrotris(3-phenyl-5-methylpyrazolyl)borate and BF = monoanionic benzoylformate) to catalyze the aerobic oxidation of organic substrates. An iron–oxo oxidant, intercepted in the reaction of 1 with O2, selectively oxidizes sulfides to sulfoxides, alkenes to epoxides, and alcohols to the corresponding carbonyl compounds. The oxidant from 1 is able to hydroxylate the benzylic carbon of phenylacetic acid to afford mandelic acid with the incorporation of one oxygen atom from O2 into the product. The iron(ii)–benzoylformate complex oxidatively converts phenoxyacetic acids to the corresponding phenols, thereby mimicking the function of iron(ii)–α-ketoglutarate-dependent 2,4-dichlorophenoxyacetate dioxygenase (TfdA). Furthermore, complex 1 exhibits catalytic aerobic oxidation of alcohols and oxygen atom transfer reactions with multiple turnovers.
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Affiliation(s)
- Debobrata Sheet
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata 700032 , India . ; ; Tel: +91-33-2473-4971
| | - Tapan Kanti Paine
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata 700032 , India . ; ; Tel: +91-33-2473-4971
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Potent Heterogeneous Catalyst for Low Temperature Selective Oxidation of Cyclohexanol by Molecular Oxygen. J CHEM-NY 2016. [DOI: 10.1155/2016/1254796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Platinum supported on zirconium dioxide catalyst was prepared by standard method and characterized by SEM, EDX, XRD, BET surface area and pore size analyzer, and FT-IR. The catalyst was screened for its catalytic activity in a model reaction, selective oxidation of cyclohexanol. The only one major product, cyclohexanone 31%, with 99.8% selectivity was obtained. Experimental data was analyzed through different kinetic models and we deduced that the reaction follows Langmuir-Hinshelwood mechanism. The apparent activation energy for the model reaction was calculated as 45 kJ/mole. The catalyst was regenerated several times with same efficiency.
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Abdolahzadeh S, de Boer JW, Browne WR. Redox-State Dependent Ligand Exchange in Manganese-Based Oxidation Catalysis. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500134] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Ilyas M, Saeed M, Sadiq M, Siddique M. Mixed-valence Manganese Oxide Catalysed Oxidation of Benzyl Alcohol and Cyclohexanol in the Liquid Phase. PROGRESS IN REACTION KINETICS AND MECHANISM 2015. [DOI: 10.3184/146867814x14139853537970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two types of mixed-valence manganese oxides were synthesised by a mechano-chemical process in the solid phase by chemical reaction of manganese(II) chloride and potassium permanganate at room temperature. The prepared catalysts were characterised by surface area and pore size, particle size, XRD analyses, SEM analyses and oxygen content measurements. These oxides were used as catalysts for oxidation of benzyl alcohol and cyclohexanol in the presence of solvent and also in solvent-free conditions using molecular oxygen as oxidant. The oxidation reactions were heterogeneous in nature where the catalysts were separated from the reaction mixture by simple filtration. Reaction took place in two steps according to the Langmuir–Hinshelwood mechanism. Benzyl alcohol/cyclohexanol and oxygen adsorb at the surface of the catalyst in the first step followed by reaction between adsorbed benzyl alcohol/cyclohexanol in second step. 69.8 kJ mol−1 and 140.8 kJ mol−1 were calculated as the activation energy for benzyl alcohol and cyclohexanol in n-octane as the solvent respectively, with values of 65.1 and 76 kJ mol−1 for benzyl alcohol and cyclohexanol in solvent-free conditions respectively.
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Affiliation(s)
- Mohammad Ilyas
- National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan
- Department of Chemistry, Qurtuba University of Science and Information Technology, Pakistan
| | - Muhammad Saeed
- National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan
- Department of Chemistry, Government College University Faisalabad, Pakistan
| | - Mohammad Sadiq
- National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan
- Department of Chemistry, University of Malakand, Pakistan
| | - Mohsin Siddique
- National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan
- Department of Chemistry, Bacha Khan University, Pakistan
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Dai W, Lv Y, Wang L, Shang S, Chen B, Li G, Gao S. Highly efficient oxidation of alcohols catalyzed by a porphyrin-inspired manganese complex. Chem Commun (Camb) 2015; 51:11268-71. [DOI: 10.1039/c5cc03657g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A novel strategy for catalytic oxidation of a variety of benzylic, allylic, propargylic, and aliphatic alcohols to the corresponding aldehydes or ketones has been successfully developed.
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Affiliation(s)
- Wen Dai
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Ying Lv
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Lianyue Wang
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Sensen Shang
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Bo Chen
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Guosong Li
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
| | - Shuang Gao
- Dalian Institute of Chemical Physics
- The Chinese Academy of Sciences and Dalian National Laboratory for Clean Energy
- Dalian 116023
- China
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Azadbakht R, Amini Manesh A, Malayeri M, Dehghani B. Synthesis, characterization, reactivity and catalytic activity of a novel chiral manganese Schiff base complex. NEW J CHEM 2015. [DOI: 10.1039/c5nj01031d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new type of manganese-Schiff base complex was synthesized and used as a catalyst for the oxidation of alcohols to the carbonyl compounds.
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Affiliation(s)
- Reza Azadbakht
- Department of Chemistry
- Payame Noor Universtiy
- Tehran
- Islamic Republic of Iran
| | - Abbas Amini Manesh
- Department of Chemistry
- Payame Noor Universtiy
- Tehran
- Islamic Republic of Iran
| | - Mahdieh Malayeri
- Department of Chemistry
- Payame Noor Universtiy
- Tehran
- Islamic Republic of Iran
| | - Behzad Dehghani
- Department of Chemistry
- Payame Noor Universtiy
- Tehran
- Islamic Republic of Iran
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Shen D, Miao C, Xu D, Xia C, Sun W. Highly Efficient Oxidation of Secondary Alcohols to Ketones Catalyzed by Manganese Complexes of N4 Ligands with H2O2. Org Lett 2014; 17:54-7. [DOI: 10.1021/ol5032156] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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
| | - 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
| | - 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
| | - 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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Ottenbacher RV, Talsi EP, Bryliakov KP. Mechanism of Selective C–H Hydroxylation Mediated by Manganese Aminopyridine Enzyme Models. ACS Catal 2014. [DOI: 10.1021/cs5013206] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roman V. Ottenbacher
- 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
| | - 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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Noshiranzadeh N, Bikas R, Ślepokura K, Mayeli M, Lis T. Synthesis, characterization and catalytic activity of new Cr(III) complex in oxidation of primary alcohols to aldehydes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Huang D, Wang C, Song Y. Immobilized complexes of the salen Schiff’s base with metal as oxidation catalysts. RUSS J GEN CHEM+ 2014. [DOI: 10.1134/s1070363213120281] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Dong JJ, Unjaroen D, Mecozzi F, Harvey EC, Saisaha P, Pijper D, de Boer JW, Alsters P, Feringa BL, Browne WR. Manganese-catalyzed selective oxidation of aliphatic C-H groups and secondary alcohols to ketones with hydrogen peroxide. CHEMSUSCHEM 2013; 6:1774-1778. [PMID: 24009102 DOI: 10.1002/cssc.201300378] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 06/23/2013] [Indexed: 06/02/2023]
Abstract
An efficient and simple method for selective oxidation of secondary alcohols and oxidation of alkanes to ketones is reported. An in situ prepared catalyst is employed based on manganese(II) salts, pyridine-2-carboxylic acid, and butanedione, which provides good-to-excellent conversions and yields with high turnover numbers (up to 10 000) with H2 O2 as oxidant at ambient temperatures. In substrates bearing multiple alcohol groups, secondary alcohols are converted to ketones selectively and, in general, benzyl C-H oxidation proceeds in preference to aliphatic C-H oxidation.
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Affiliation(s)
- Jia Jia Dong
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen (The Netherlands), Fax: (+31) 50-363-4296
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Mahmood A, Akgun Z, Peng Y, Müller P, Jiang Y, Berke H, Jones AG, Nicholson T. The synthesis and characterization of rhenium nitrosyl complexes. The X-ray crystal structures of [ReBr2(NO)(NCMe)3], [Re(NO)(N5)](BPh4)2] and [ReBr2(NO)(NCMe){py-CH2-NH∼CH2CH2-N(CH2-py)2}]. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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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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Khusnutdinov RI, Bayguzina AR, Dzhemilev UM. Manganese compounds in the catalysis of organic reactions. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2012. [DOI: 10.1134/s1070428012030013] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ciesielski A, Stefankiewicz AR, Wałęsa-Chorab M, Patroniak V, Kubicki M, Hnatejko Z, Harrowfield JM. Association of quaterpyridine complex cations with polyanionometallates. Supramol Chem 2010. [DOI: 10.1080/10610270802538280] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Artur Ciesielski
- a Faculty of Chemistry , Adam Mickiewicz Univesity , Poznań, Poland
- b ISIS , Université Louis Pasteur , Strasbourg, France
| | - Artur R. Stefankiewicz
- a Faculty of Chemistry , Adam Mickiewicz Univesity , Poznań, Poland
- b ISIS , Université Louis Pasteur , Strasbourg, France
| | | | - Violetta Patroniak
- a Faculty of Chemistry , Adam Mickiewicz Univesity , Poznań, Poland
- b ISIS , Université Louis Pasteur , Strasbourg, France
| | - Maciej Kubicki
- a Faculty of Chemistry , Adam Mickiewicz Univesity , Poznań, Poland
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Kozlov YN, Shul’pina LS, Strelkova TV, Shul’pin GB. Kinetics and mechanism of 1-phenylethanol oxidation by the system hydrogen peroxide-manganese(IV) binuclear complex-oxalic acid. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2010. [DOI: 10.1134/s0036024410090098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Solvent-Free Oxidation of Alcohols Catalyzed by a Mn(III) Schiff-Base Complex Using Hydrogen Peroxide as an Oxidant. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.1016/s1872-2067(09)60074-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Pijper D, Saisaha P, de Boer JW, Hoen R, Smit C, Meetsma A, Hage R, van Summeren RP, Alsters PL, Feringa BL, Browne WR. The unexpected role of pyridine-2-carboxylic acid in manganese based oxidation catalysis with pyridin-2-yl based ligands. Dalton Trans 2010; 39:10375-81. [DOI: 10.1039/c0dt00452a] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Gupta K, Kumar Sutar A, Lin CC. Polymer-supported Schiff base complexes in oxidation reactions. Coord Chem Rev 2009. [DOI: 10.1016/j.ccr.2009.03.019] [Citation(s) in RCA: 309] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gharah N, Chakraborty S, Mukherjee AK, Bhattacharyya R. Oxoperoxo molybdenum(VI)- and tungsten(VI) complexes with 1-(2′-hydroxyphenyl) ethanone oxime: Synthesis, structure and catalytic uses in the oxidation of olefins, alcohols, sulfides and amines using H2O2 as a terminal oxidant. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.05.017] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Groni S, Dorlet P, Blain G, Bourcier S, Guillot R, Anxolabéhère-Mallart E. Reactivity of an Aminopyridine [LMnII]2+ Complex with H2O2. Detection of Intermediates at Low Temperature. Inorg Chem 2008; 47:3166-72. [DOI: 10.1021/ic702238z] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sihem Groni
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
| | - Pierre Dorlet
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
| | - Guillaume Blain
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
| | - Sophie Bourcier
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
| | - Elodie Anxolabéhère-Mallart
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Equipe de Chimie Inorganique, Université Paris XI, 91405 Orsay, France, Laboratoire du Stress Oxydant et Détoxication, URA CNRS 2096-IBITECS CEA Saclay, Bat. 532, 91191 Gif-sur-Yvette Cedex, France, Institut de Chimie Moléculaire et des Matériaux d’Orsay, UMR CNRS 8182, Université Paris XI, 91405 Orsay, France, and Ecole Polytechnique 91128 Palaiseau, France
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Nehru K, Kim SJ, Kim IY, Seo MS, Kim Y, Kim SJ, Kim J, Nam W. A highly efficient non-heme manganese complex in oxygenation reactions. Chem Commun (Camb) 2007:4623-5. [PMID: 17989812 DOI: 10.1039/b708976g] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A non-heme manganese(II) complex shows a high catalytic activity in the epoxidation of olefins by iodosyl benzene and in the oxidation of olefins, alcohols and alkanes by peracetic acid; a mechanism involving metal-based oxidants is proposed for the oxidation reactions.
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Affiliation(s)
- Kasi Nehru
- Department of Chemistry, Division of Nano Sciences, and Center for Biomimetic Systems, Ewha Womans University, Seoul, Korea
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Stránská J, Sebela M, Tarkowski P, Rehulka P, Chmelík J, Popa I, Pec P. Inhibition of plant amine oxidases by a novel series of diamine derivatives. Biochimie 2007; 89:135-44. [PMID: 16989933 DOI: 10.1016/j.biochi.2006.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 08/16/2006] [Indexed: 11/15/2022]
Abstract
A series of N,N'-bis(2-pyridinylmethyl)diamines was synthesized and characterized for their inhibition effects towards plant copper-containing amine oxidase (EC 1.4.3.6) and polyamine oxidase (EC 1.5.3.11), which mediate the catabolic regulation of cellular polyamines. Even though these enzymes catalyze related reactions and, among others, act upon two common substrates (spermidine and spermine), their molecular and kinetic properties are different. They also show a different spectrum of inhibitors. It is therefore of interest to look for compounds providing a dual inhibition (i.e. inhibiting both enzymes with the same inhibition potency), which would be useful in physiological studies involving modulations of polyamine catabolism. The synthesized diamine derivatives comprised from two to eight carbon atoms in the alkyl spacer chain. Kinetic measurements with pea (Pisum sativum) diamine oxidase and oat (Avena sativa) polyamine oxidase demonstrated reversible binding of the compounds at the active sites of the enzymes as they were almost exclusively competitive inhibitors with K(i) values ranging from 10(-5) to 10(-3)M. In case of oat polyamine oxidase, the K(i) values were significantly influenced by the number of methylene groups in the inhibitor molecule. The measured inhibition data are discussed with respect to enzyme structure. For that reason, the oat enzyme was analyzed by de novo peptide sequencing using mass spectrometry and shown to be homologous to polyamine oxidases from barley (isoform 1) and maize. We conclude that some of the studied N,N'-bis(2-pyridinylmethyl)diamines might have a potential to be starting structures in design of metabolic modulators targeted to both types of amine oxidases.
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Affiliation(s)
- Jana Stránská
- Department of Biochemistry, Faculty of Science, Palacký University, Slechtitelů 11, 783 71 Olomouc, Czech Republic
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Yang ZW, Kang QX, Quan F, Lei ZQ. Oxidation of alcohols using iodosylbenzene as oxidant catalyzed by ruthenium complexes under mild reaction conditions. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.07.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Mardani HR, Golchoubian H. Effective oxidation of benzylic and aliphatic alcohols with hydrogen peroxide catalyzed by a manganese(III) Schiff-base complex under solvent-free conditions. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.02.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Hage R, Lienke A. Anwendung von Übergangsmetallkomplexen zum Bleichen von Textilien und Holzpulpe. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200500525] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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43
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Hage R, Lienke A. Applications of Transition-Metal Catalysts to Textile and Wood-Pulp Bleaching. Angew Chem Int Ed Engl 2006; 45:206-22. [PMID: 16342123 DOI: 10.1002/anie.200500525] [Citation(s) in RCA: 201] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
From an economic perspective, textile and paper bleaching are amongst the most important oxidation processes. The removal of unwanted chromophores, be it stains on cloths or residual lignin in wood pulp, consumes more than 60 % of the world production of hydrogen peroxide. However, existing technologies have their limitations. At ambient temperature, hydrogen peroxide gives little stain bleaching and is used inefficiently. Hence the high product dosages and washing temperatures required limit its application to predominantly European markets, to the exclusion of the majority of the world's population. In paper manufacture, the use of chlorine-based oxidants results in the formation of chlorinated waste products, which show poor biodegradability. On the other hand, hydrogen peroxide requires higher temperatures, longer reaction times and is more expensive. Transition-metal catalysts offer an alternative. This review discusses the main classes of known bleach catalysts and their possible modes of action.
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Affiliation(s)
- Ronald Hage
- Unilever R&D Vlaardingen, Olivier van Noortlaan 120, 3133 AT Vlaardingen, The Netherlands.
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Hureau C, Blondin G, Charlot MF, Philouze C, Nierlich M, Césario M, Anxolabéhère-Mallart E. Synthesis, Structure, and Characterization of New Mononuclear Mn(II) Complexes. Electrochemical Conversion into New Oxo-Bridged Mn2(III,IV) Complexes. Role of Chloride Ions. Inorg Chem 2005; 44:3669-83. [PMID: 15877451 DOI: 10.1021/ic050243y] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Two Mn(II) complexes are isolated and X-ray characterized, namely, cis-[(L(2))Mn(II)(Cl)(2)] (1) and [(L(3))Mn(II)Cl(OH(2))](ClO(4)) (2(ClO(4))), where L(2) and L(3) are the well-known tetradentate N,N'-dimethyl-N,N'-bis(2-pyridylmethyl)ethane-1,2-diamine and N,N'-dimethyl-N,N'-bis(2-pyridylmethyl)propane-1,3-diamine ligands, respectively. The crystal structure reveals that whereas the ligand L(2) is in the cis-alpha conformation in complex 1, the ligand L(3) is in the more unusual cis-beta conformation in 2. EPR spectra are recorded on frozen solutions for both complexes and are characteristic of Mn(II) species. Electrochemical behaviors are investigated on acetonitrile solution for both complexes and show that cation 2 exists as closely related Mn(II) species in equilibrium. For both complexes exhaustive bulk electrolyses of acetonitrile solution are performed at oxidative potential in various experimental conditions. In the presence of 2,6-lutidine and after elimination of chloride ligands, the formation of the di-mu-oxo mixed-valent complexes [(L(2))Mn(III)(mu-O)(2)Mn(IV)(L(2))](3+) (3a) and [(L(3))Mn(III)(mu-O)(2)Mn(IV)(L(3))](3+) (4) is confirmed by UV-vis and EPR spectroscopies and cyclic voltammetry. In addition crystals of 4(ClO(4))(3) were isolated, and the X-ray structure reveals the cis-alphaconformation of L(3). In the absence of 2,6-lutidine and without elimination of the exogenous chloride ions, the electrochemical oxidation of 1 leads to the formation of the mononuclear Mn(III) complex, namely, [(L(2))Mn(III)(Cl)(2)](+) (5), as confirmed by UV-vis as well as parallel mode EPR spectroscopy and cyclic voltammetry. In the same conditions, the electrochemical oxidation of complex 2 is more intricate, and a thorough analysis of EPR spectra establishes the formation of the binuclear mono-mu-oxo mixed-valent [(L(3))ClMn(III)(mu-O)Mn(IV)Cl(L(3))](3+) (6) complexes. Electrochemical conversion of Mn(II) complexes into mixed-valent Mn(2)(III,IV) oxo-bridged complexes in the presence of 2,6-lutidine is discussed. The role of the chloride ligands as well as that of L(3) in the building of oxo bridges is discussed. Differences in behavior between L(2) and L(3) are commented on.
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Affiliation(s)
- Christelle Hureau
- Laboratoire de Chimie Inorganique, UMR 8613, LCR-CEA No. 33V, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Université Paris-Sud, France
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Sprakel VSI, Feiters MC, Meyer-Klaucke W, Klopstra M, Brinksma J, Feringa BL, Karlin KD, Nolte RJM. Oxygen binding and activation by the complexes of PY2- and TPA-appended diphenylglycoluril receptors with copper and other metals. Dalton Trans 2005:3522-34. [PMID: 16234934 DOI: 10.1039/b506288h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The copper(I) complexes of diphenylglycoluril basket receptors and , appended with bis(2-ethylpyridine)amine (PY2) and tris(2-methylpyridine)amine (TPA), respectively, and their dioxygen adducts were studied with low-temperature UV-vis and X-ray absorption spectroscopy (XAS). The copper(I) complex of, [.Cu(I)2] or, forms a micro-eta2:eta2 dioxygen complex, whereas the copper(I) complex of, [.Cu(I)2] or, does not form a well defined dioxygen complex, but is oxidized to Cu(II). Dioxygen is bound irreversibly to and the formed complex is stable over time. The coordination geometries of the above complexes were determined by XAS, which revealed that pyridyl groups and amine N-donors participate in the coordination to Cu(I) ions in the complexes of both receptors. The catalytic activities of various metal complexes of and , that were designed as mimics of dinuclear copper enzymes that can activate dioxygen, were investigated. Phenolic substrates that were expected to undergo aromatic hydroxylation, showed oxidative polymerization without insertion of oxygen. The mechanism of this polymerization turns out to be a radical coupling reaction as was established by experiments with the model substrate 2,4-di-tert-butylphenol. In addition to Cu(II), the Mn(III) complex of and the Fe(II) complex of were tested as oxidation catalysts. Oxidation of catechol was observed for the Cu(II) complex of receptor but the other metal complexes did not lead to oxidation.
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Affiliation(s)
- Vera S I Sprakel
- Department of Organic Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, 1 Toernooiveld, NL-6525, ED Nijmegen, The Netherlands
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Lonnon DG, Craig DC, Colbran SB. An unusual but informative synthesis and the crystal structure of [Co(tpaCO2)Cl](ClO4) (tpaCO2−=6-carboxylato-2- (pyridylmethyl)-bis(2-pyridylmethyl)amine). INORG CHEM COMMUN 2003. [DOI: 10.1016/j.inoche.2003.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sloboda-Rozner D, Alsters PL, Neumann R. A water-soluble and "self-assembled" polyoxometalate as a recyclable catalyst for oxidation of alcohols in water with hydrogen peroxide. J Am Chem Soc 2003; 125:5280-1. [PMID: 12720432 DOI: 10.1021/ja0344821] [Citation(s) in RCA: 180] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have demonstrated that a simply prepared water-soluble polyoxometalate, Na12[WZnZn2(H2O)2(ZnW9O34)2], synthesized from readily available zinc and tungsten salts in the presence of nitric acid, is an effective catalyst for selective alcohol oxidation with hydrogen peroxide in biphasic (water-alcohol) reaction media. Experiments have shown that the "self-assembled" catalyst in its mother liquor was as active as the isolated catalyst. The aqueous catalyst solution is easily separated from the water-insoluble products and can be recycled without loss in activity or selectivity.
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Affiliation(s)
- Dorit Sloboda-Rozner
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel, 76100
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