1
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Gullett KL, Ford CL, Garvey IJ, Miller TJ, Leahy CA, Awaitey LN, Hofmann DM, Woods TJ, Fout AR. Formation of Red Elemental Selenium from Seleniferous Oxyanions: Deoxygenation by a Homogeneous Iron Catalyst. J Am Chem Soc 2023; 145:20868-20873. [PMID: 37712762 DOI: 10.1021/jacs.3c05981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Seleniferous oxyanions are groundwater contaminants from both anthropogenic and natural sources, while pure amorphous selenium nanoparticles have a variety of industrial applications. Biology can achieve the multicomponent 6 e-/8 H+ reduction of selenate to amorphous selenium using multiple metalloenzymes, like selenate and selenite reductase. Inspired by biology, we developed a new homogeneous system that can generate pure elemental selenium with no caustic waste. The stoichiometric reductions of selenate, selenite, and selenium dioxide with an iron(II) complex produced an iron(III)-oxo and red elemental selenium, the latter of which has been characterized by a variety of spectroscopic techniques. The catalytic reduction of SeO42- and SeO32- directly to amorphous Se and isolated as Se=PPh3 is reported with a turnover number of 12 and 7, respectively.
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Affiliation(s)
- Kelly L Gullett
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Courtney L Ford
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Ian J Garvey
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Tabitha J Miller
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Clare A Leahy
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Lisa N Awaitey
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Daniel M Hofmann
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Toby J Woods
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, United States
| | - Alison R Fout
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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2
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Capperucci A, Clemente M, Cenni A, Tanini D. Transition Metal-free Selenium-mediated Aryl Amines via Reduction of Nitroarenes. CHEMSUSCHEM 2023; 16:e202300086. [PMID: 36971384 DOI: 10.1002/cssc.202300086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/22/2023] [Accepted: 03/25/2023] [Indexed: 06/18/2023]
Abstract
A scalable and operationally simple on water seleno-mediated reduction of nitroarenes to the respective aryl amines with NaBH4 is described. The reaction proceeds under transition metal-free conditions and is promoted by the formation of Na2 Se, which is the effective reducing agent involved in the mechanism. This mechanistic information enabled the development of a mild NaBH4 -free protocol for the selective reduction of nitro derivatives bearing labile moieties, including nitrocarbonyl compounds. The selenium-containing aqueous phase can be successfully reused up to four reduction cycles, thus further improving the efficiency of the protocol disclosed.
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Affiliation(s)
- Antonella Capperucci
- Department of Chemistry 'Ugo Schiff', University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Martina Clemente
- Department of Chemistry 'Ugo Schiff', University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Alessio Cenni
- Department of Chemistry 'Ugo Schiff', University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Damiano Tanini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
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3
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Sands KN, Burman AL, Ansah-Asamoah E, Back TG. Chemistry Related to the Catalytic Cycle of the Antioxidant Ebselen. Molecules 2023; 28:molecules28093732. [PMID: 37175141 PMCID: PMC10180093 DOI: 10.3390/molecules28093732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
The antioxidant drug ebselen has been widely studied in both laboratories and in clinical trials. The catalytic mechanism by which it destroys hydrogen peroxide via reduction with glutathione or other thiols is complex and has been the subject of considerable debate. During reinvestigations of several key steps, we found that the seleninamide that comprises the first oxidation product of ebselen underwent facile reversible methanolysis to an unstable seleninate ester and two dimeric products. In its reaction with benzyl alcohol, the seleninamide produced a benzyl ester that reacted readily by selenoxide elimination, with formation of benzaldehyde. Oxidation of ebselen seleninic acid did not afford a selenonium seleninate salt as previously observed with benzene seleninic acid, but instead generated a mixture of the seleninic and selenonic acids. Thiolysis of ebselen with benzyl thiol was faster than oxidation by ca. an order of magnitude and produced a stable selenenyl sulfide. When glutathione was employed, the product rapidly disproportionated to glutathione disulfide and ebselen diselenide. Oxidation of the S-benzyl selenenyl sulfide, or thiolysis of the seleninamide with benzyl thiol, afforded a transient thiolseleninate that also readily underwent selenoxide elimination. The S-benzyl derivative disproportionated readily when catalyzed by the simultaneous presence of both the thiol and triethylamine. The phenylthio analogue disproportionated when exposed to ambient or UV (360 nm) light by a proposed radical mechanism. These observations provide additional insight into several reactions and intermediates related to ebselen.
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Affiliation(s)
- Kai N Sands
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Austin L Burman
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Esther Ansah-Asamoah
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
| | - Thomas G Back
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
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4
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Capperucci A, Dalia C, Cenni A, Tanini D. Synthesis of nitroarenes and azoxyarenes through the selenium-mediated on water oxidation of aryl amines. PHOSPHORUS SULFUR 2023. [DOI: 10.1080/10426507.2023.2166044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Antonella Capperucci
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Firenze, Italy
| | - Camilla Dalia
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Firenze, Italy
| | - Alessio Cenni
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Firenze, Italy
| | - Damiano Tanini
- Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Firenze, Italy
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5
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Ferdousian R, Behbahani FK. Organoselenium compounds. Synthesis, application, and biological activity. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2119237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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6
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Abenante L, Quadros GT, Perin G, Santi C, Penteado F, Lenardao EJ. Visible Light Mediated Photocatalytic Synthesis of 2‐Substituted Oxazole‐5‐carbaldehydes Promoted by Benzeneseleninic Acid. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Claudio Santi
- University of Perugia: Universita degli Studi di Perugia Dept Pharmaceutical Sciences BRAZIL
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Abstract
Nitro compounds are an important class of organic molecules with broad application in organic synthesis, medicinal chemistry, and materials science. Among the variety of methodologies available for their synthesis, the direct oxidation of primary amines represents an attractive alternative route. Efforts towards the development of oxidative procedures for the synthesis of nitro derivatives have spanned over the past decades, leading to a wide variety of protocols for the selective oxidative conversion of amines to nitro derivatives. Methods for the synthesis of nitroarenes via oxidation of aryl amines, with particular emphasis on recent advances in the field, are summarised in this review.
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Chen F, Li F, Zeng Q. Synthesis of Dibenzylic Diselenides from Elemental Selenium and Benzylic Quaternary Ammonium Salts. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Feng Chen
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials, Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Fuhai Li
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials, Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Qingle Zeng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection College of Materials, Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
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Sands KN, Gelfand BS, Back TG. One-Pot Synthesis of Aryl Selenonic Acids and Some Unexpected Byproducts. J Org Chem 2021; 86:9938-9944. [PMID: 34269577 DOI: 10.1021/acs.joc.1c01369] [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
The synthesis of aryl selenonic acids was achieved from diverse aryl bromides via a one-pot method involving metalation, selenation, and oxidation with hydrogen peroxide followed by ion exchange to afford the pure products in 77-90% yield. An o-hydroxymethyl derivative was found to dehydrate readily, affording the first example of a cyclic selenonic ester, while two minor byproducts were isolated and shown by X-ray crystallography to be mixed salts of aryl selenonic acids with either the corresponding aryl seleninic or selenious acid.
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Affiliation(s)
- Kai N Sands
- Department of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - Benjamin S Gelfand
- Department of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - Thomas G Back
- Department of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
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10
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Ma Z, Mahmudov KT, Aliyeva VA, Gurbanov AV, Guedes da Silva MFC, Pombeiro AJ. Peroxides in metal complex catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Zervas E, Matsouki N, Kyriakopoulos G, Poulopoulos S, Ioannides T, Katsaounou P. Transfer of metals in the liquids of electronic cigarettes. Inhal Toxicol 2020; 32:240-248. [PMID: 32538207 DOI: 10.1080/08958378.2020.1776801] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Objectives: E-cigarettes are electronic devices containing a liquid that usually consists of a mixture of glycerol, propylene glycol and nicotine, with or without flavorings, in various concentrations. A vapor or aerosol is produced, and inhaled from the user, when this liquid is heated by a heating coil. This work examines the impact of three parameters (e-liquid composition, nicotine content and air flow) on the transfer of metals' from the heating coils to the e-liquids.Materials and methods: A distillation unit was used, where 20ml of an e-liquid were boiled with two commercial heating elements. Four e-liquids: 100% Propylene Glycol, 100% Glycerol, 50/50% Propylene Glycol/Glycerol, 33.3/33.3/33.3% Propylene Glycol/Glycerol/Water, three nicotine contents: 0, 0.4 and 0.8% per volume and three air flows: 0, 0.5 and 1.0 L/min, were used. The liquids were analyzed by Total Reflection X-Ray Fluorescence spectrometry to determine the final content of metals.Results and discussion: Five metals, Fe, Ni, Cu, Zn, and Pb, were found to be transferred from the heating coils to the e-liquids. The transfer of those metals increases with air flow and nicotine concentration, while e-liquid composition also has a significant impact. Glycerol enhances the transfer of metals compared to propylene glycol and their mixtures. The boiling temperature of the e-liquids increases significantly the transfer of metals in the e-liquids.Conclusions: There is a transfer of metals from the heating coils to the e-liquids. This transfer depends on the e-liquid composition and on the boiling temperature.
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Affiliation(s)
- Efthimios Zervas
- School of Science and Technology, Hellenic Open University, Patras, Greece.,Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patra, Greece
| | - Niki Matsouki
- School of Science and Technology, Hellenic Open University, Patras, Greece.,Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patra, Greece
| | - Grigorios Kyriakopoulos
- School of Electrical and Computer Engineering, National Technical University of Athens (NTUA), Athens, Greece
| | - Stavros Poulopoulos
- Department of Chemical and Materials Engineering Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Theophilos Ioannides
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patra, Greece
| | - Paraskevi Katsaounou
- Department of Critical Care and Pulmonary Services, "Evangelismos" Hospital, Athens Medical School, University of Athens, Athens, Greece
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12
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New efficient design and synthesis of novel antioxidant and antifungal 7-imino[1,3]selenazolo[4,5-d]pyrimidine-5(4H)-thiones utilizing a base-promoted cascade addition/cyclization sequence. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02617-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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13
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Sands KN, Mendoza Rengifo E, George GN, Pickering IJ, Gelfand BS, Back TG. The Unexpected Role of Se
VI
Species in Epoxidations with Benzeneseleninic Acid and Hydrogen Peroxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Kai N. Sands
- Department of Chemistry University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Emerita Mendoza Rengifo
- Department of Geological Sciences University of Saskatchewan 114 Science Place Saskatoon Saskatchewan S7N 5E2 Canada
| | - Graham N. George
- Department of Geological Sciences University of Saskatchewan 114 Science Place Saskatoon Saskatchewan S7N 5E2 Canada
| | - Ingrid J. Pickering
- Department of Geological Sciences University of Saskatchewan 114 Science Place Saskatoon Saskatchewan S7N 5E2 Canada
| | - Benjamin S. Gelfand
- Department of Chemistry University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Thomas G. Back
- Department of Chemistry University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
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14
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Sands KN, Mendoza Rengifo E, George GN, Pickering IJ, Gelfand BS, Back TG. The Unexpected Role of Se VI Species in Epoxidations with Benzeneseleninic Acid and Hydrogen Peroxide. Angew Chem Int Ed Engl 2020; 59:4283-4287. [PMID: 31875332 PMCID: PMC7054174 DOI: 10.1002/anie.201913566] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/04/2019] [Indexed: 11/08/2022]
Abstract
Benzeneperoxyseleninic acid has been proposed as the key intermediate in the widely used epoxidation of alkenes with benzeneseleninic acid and hydrogen peroxide. However, it reacts sluggishly with cyclooctene and instead rapidly decomposes in solution to a mixed selenonium-selenonate salt that was identified by X-ray absorption and 77 Se NMR spectroscopy, as well as by single crystal X-ray diffraction. This process includes a selenoxide elimination of the peroxyseleninic acid with liberation of oxygen and additional redox steps. The salt is relatively stable in the solid state, but generates the corresponding selenonic acid in the presence of hydrogen peroxide. The selenonic acid is inert towards cyclooctene on its own; however, rapid epoxidation occurs when hydrogen peroxide is added. This shows that the selenonic acid must first be activated through further oxidation, presumably to the heretofore unknown benzeneperoxyselenonic acid. The latter is the principal oxidant in this epoxidation.
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Affiliation(s)
- Kai N Sands
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Emerita Mendoza Rengifo
- Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan, S7N 5E2, Canada
| | - Graham N George
- Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan, S7N 5E2, Canada
| | - Ingrid J Pickering
- Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan, S7N 5E2, Canada
| | - Benjamin S Gelfand
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
| | - Thomas G Back
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
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15
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Stathi A, Mamais M, Chrysina ED, Gimisis T. Anomeric Spironucleosides of β-d-Glucopyranosyl Uracil as Potential Inhibitors of Glycogen Phosphorylase. Molecules 2019; 24:E2327. [PMID: 31242546 PMCID: PMC6630470 DOI: 10.3390/molecules24122327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 11/16/2022] Open
Abstract
In the case of type 2 diabetes, inhibitors of glycogen phosphorylase (GP) may prevent unwanted glycogenolysis under high glucose conditions and thus aim at the reduction of excessive glucose production by the liver. Anomeric spironucleosides, such as hydantocidin, present a rich synthetic chemistry and important biological function (e.g., inhibition of GP). For this study, the Suárez radical methodology was successfully applied to synthesize the first example of a 1,6-dioxa-4-azaspiro[4.5]decane system, not previously constructed via a radical pathway, starting from 6-hydroxymethyl-β-d-glucopyranosyluracil. It was shown that, in the rigid pyranosyl conformation, the required [1,5]-radical translocation was a minor process. The stereochemistry of the spirocycles obtained was unequivocally determined based on the chemical shifts of key sugar protons in the 1H-NMR spectra. The two spirocycles were found to be modest inhibitors of RMGPb.
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Affiliation(s)
- Aggeliki Stathi
- Organic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 10571 Athens, Greece.
| | - Michael Mamais
- Organic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 10571 Athens, Greece.
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece.
| | - Evangelia D Chrysina
- Institute of Chemical Biology, National Hellenic Research Foundation, 11635 Athens, Greece.
| | - Thanasis Gimisis
- Organic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 10571 Athens, Greece.
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16
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Rathore V, Jose C, Kumar S. Organoselenium small molecules as catalysts for the oxidative functionalization of organic molecules. NEW J CHEM 2019. [DOI: 10.1039/c9nj00964g] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This perspective highlights the critical analysis of the challenges, in the past decade, which led to the development of organoselenium compounds and their use as versatile catalysts in organic synthesis towards the oxidation of olefins and C–H bonds. Furthermore, the emphasis here differs from previous reviews of the field by classifying the various types of catalyses and the diverse strategies.
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Affiliation(s)
- Vandana Rathore
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal
- India
| | - Cavya Jose
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal
- India
| | - Sangit Kumar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Bhopal
- India
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17
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Colizza K, Gonsalves M, McLennan L, Smith JL, Oxley JC. Metabolism of triacetone triperoxide (TATP) by canine cytochrome P450 2B11. Forensic Toxicol 2018. [DOI: 10.1007/s11419-018-0450-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Rangraz Y, Nemati F, Elhampour A. Magnetic chitosan composite as a green support for anchoring diphenyl diselenide as a biocatalyst for the oxidation of sulfides. Int J Biol Macromol 2018; 117:820-830. [DOI: 10.1016/j.ijbiomac.2018.05.207] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/23/2018] [Accepted: 05/27/2018] [Indexed: 12/23/2022]
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19
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de Carvalho RL, Jardim GAM, Santos ACC, Araujo MH, Oliveira WXC, Bombaça ACS, Menna‐Barreto RFS, Gopi E, Gravel E, Doris E, da Silva Júnior EN. Combination of Aryl Diselenides/Hydrogen Peroxide and Carbon‐Nanotube/Rhodium Nanohybrids for Naphthol Oxidation: An Efficient Route towards Trypanocidal Quinones. Chemistry 2018; 24:15227-15235. [DOI: 10.1002/chem.201802773] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Renato L. de Carvalho
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
| | - Guilherme A. M. Jardim
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
| | - Augusto C. C. Santos
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
| | - Maria H. Araujo
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
| | - Willian X. C. Oliveira
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
| | | | | | - Elumalai Gopi
- Service de Chimie Bioorganique et de Marquage (SCBM)CEAUniversité Paris-Saclay 91191 Gif-sur-Yvette France
| | - Edmond Gravel
- Service de Chimie Bioorganique et de Marquage (SCBM)CEAUniversité Paris-Saclay 91191 Gif-sur-Yvette France
| | - Eric Doris
- Service de Chimie Bioorganique et de Marquage (SCBM)CEAUniversité Paris-Saclay 91191 Gif-sur-Yvette France
| | - Eufrânio N. da Silva Júnior
- Institute of Exact SciencesDepartment of ChemistryFederal University of Minas Gerais, UFMG 31270-901 Belo Horizonte MG Brazil
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20
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Zoidis E, Seremelis I, Kontopoulos N, Danezis GP. Selenium-Dependent Antioxidant Enzymes: Actions and Properties of Selenoproteins. Antioxidants (Basel) 2018; 7:E66. [PMID: 29758013 PMCID: PMC5981252 DOI: 10.3390/antiox7050066] [Citation(s) in RCA: 203] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 05/07/2018] [Accepted: 05/09/2018] [Indexed: 12/23/2022] Open
Abstract
Unlike other essential trace elements that interact with proteins in the form of cofactors, selenium (Se) becomes co-translationally incorporated into the polypeptide chain as part of 21st naturally occurring amino acid, selenocysteine (Sec), encoded by the UGA codon. Any protein that includes Sec in its polypeptide chain is defined as selenoprotein. Members of the selenoproteins family exert various functions and their synthesis depends on specific cofactors and on dietary Se. The Se intake in productive animals such as chickens affect nutrient utilization, production performances, antioxidative status and responses of the immune system. Although several functions of selenoproteins are unknown, many disorders are related to alterations in selenoprotein expression or activity. Selenium insufficiency and polymorphisms or mutations in selenoproteins' genes and synthesis cofactors are involved in the pathophysiology of many diseases, including cardiovascular disorders, immune dysfunctions, cancer, muscle and bone disorders, endocrine functions and neurological disorders. Finally, heavy metal poisoning decreases mRNA levels of selenoproteins and increases mRNA levels of inflammatory factors, underlying the antagonistic effect of Se. This review is an update on Se dependent antioxidant enzymes, presenting the current state of the art and is focusing on results obtained mainly in chicken.
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Affiliation(s)
- Evangelos Zoidis
- Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece.
| | - Isidoros Seremelis
- Chemistry Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece.
| | - Nikolaos Kontopoulos
- Chemistry Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece.
| | - Georgios P Danezis
- Chemistry Laboratory, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece.
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21
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Santos WCC, Dias KA, Santos LP, Kisukuri CM, Rodrigues TS, Geonmonond RS, Camargo PHC, Andrade LH. Evaluating Gold and Selenium Chemistry for Selective Transformations of Lignin Model Compounds. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701207] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Wagner C. C. Santos
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Kevin A. Dias
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Leidaiany P. Santos
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Camila M. Kisukuri
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Thenner S. Rodrigues
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Rafael S. Geonmonond
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Pedro H. C. Camargo
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
| | - Leandro H. Andrade
- Institute of Chemistry; University of São Paulo; Av. Prof. Lineu Prestes, 748 05508-000 São Paulo, SP Brazil
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22
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Rangraz Y, Nemati F, Elhampour A. Diphenyl diselenide immobilized on magnetic nanoparticles: A novel and retrievable heterogeneous catalyst in the oxidation of aldehydes under mild and green conditions. J Colloid Interface Sci 2018; 509:485-494. [DOI: 10.1016/j.jcis.2017.09.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/18/2017] [Accepted: 09/07/2017] [Indexed: 01/29/2023]
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23
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dos Santos Fernandes GF, Moreno-Viguri E, Santivañez-Veliz M, Paucar R, Chin CM, Pérez-Silanes S, dos Santos JL. A Comparative Study of Conventional and Microwave-Assisted Synthesis of Quinoxaline 1,4-di-N-oxideN-acylhydrazones Derivatives Designed as Antitubercular Drug Candidates. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2830] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guilherme Felipe dos Santos Fernandes
- Institute of Chemistry; UNESP-Univ Estadual Paulista; Araraquara 14800060 Brazil
- School of Pharmaceutical Sciences; UNESP-Univ Estadual Paulista; Araraquara 14800903 Brazil
- Department of Organic and Pharmaceutical Chemistry; Universidad de Navarra; Pamplona 31008 Spain
| | - Elsa Moreno-Viguri
- Department of Organic and Pharmaceutical Chemistry; Universidad de Navarra; Pamplona 31008 Spain
| | - Mery Santivañez-Veliz
- Department of Organic and Pharmaceutical Chemistry; Universidad de Navarra; Pamplona 31008 Spain
| | - Rocio Paucar
- Department of Organic and Pharmaceutical Chemistry; Universidad de Navarra; Pamplona 31008 Spain
| | - Chung Man Chin
- School of Pharmaceutical Sciences; UNESP-Univ Estadual Paulista; Araraquara 14800903 Brazil
| | - Silvia Pérez-Silanes
- Department of Organic and Pharmaceutical Chemistry; Universidad de Navarra; Pamplona 31008 Spain
| | - Jean Leandro dos Santos
- Institute of Chemistry; UNESP-Univ Estadual Paulista; Araraquara 14800060 Brazil
- School of Pharmaceutical Sciences; UNESP-Univ Estadual Paulista; Araraquara 14800903 Brazil
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24
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Iwasaki M, Miki N, Tsuchiya Y, Nakajima K, Nishihara Y. Synthesis of Benzoisoselenazolone Derivatives by Nickel-Catalyzed Dehydrogenative Direct Selenation of C(sp2)–H Bonds with Elemental Selenium in Air. Org Lett 2017; 19:1092-1095. [DOI: 10.1021/acs.orglett.7b00116] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Masayuki Iwasaki
- Research
Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Natsumi Miki
- Graduate
School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Yuta Tsuchiya
- Graduate
School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kiyohiko Nakajima
- Department
of Chemistry, Aichi University of Education, Igaya, Kariya 448-8542, Japan
| | - Yasushi Nishihara
- Research
Institute for Interdisciplinary Science, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
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25
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Jin W, Zheng P, Wong WT, Law GL. Efficient Selenium-Catalyzed Selective C(sp3)−H Oxidation of Benzylpyridines with Molecular Oxygen. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601065] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Weiwei Jin
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Poonnapa Zheng
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Wing-Tak Wong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Ga-Lai Law
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
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26
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Hua G, Du J, Slawin AMZ, Woollins JD. Synthesis and Structural Study of Novel Selenation Derivatives ofN, N-Dialkylcyanamides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guoxiong Hua
- School of Chemistry; University of St Andrews; Fife, Scotland KY16 9ST UK
| | - Junyi Du
- School of Chemistry; University of St Andrews; Fife, Scotland KY16 9ST UK
| | | | - J. Derek Woollins
- School of Chemistry; University of St Andrews; Fife, Scotland KY16 9ST UK
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27
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Buyck T, Pasche D, Wang Q, Zhu J. Synthesis of Oxazolidin-2-ones by Oxidative Coupling of Isonitriles, Phenyl Vinyl Selenone, and Water. Chemistry 2016; 22:2278-81. [PMID: 26683868 DOI: 10.1002/chem.201505050] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Indexed: 12/17/2022]
Abstract
Reaction of alkyl isocyanides, phenyl vinyl selenone, and water in the presence of a catalytic amount of Cs2 CO3 afforded oxazolidin-2-ones in good yields. This unprecedented heteroannulation process created four chemical bonds in a single operation with the isocyano group acting formally as a polarized double bond and phenyl vinyl selenone as a latent 1,3-dipole. The phenylselenonyl group played a triple role as an electron-withdrawing group to activate the 1,4-addition, a leaving group, and a latent oxidant in this transformation.
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Affiliation(s)
- Thomas Buyck
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Delphine Pasche
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, école Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland.
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28
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Developments in Synthetic Application of Selenium(IV) Oxide and Organoselenium Compounds as Oxygen Donors and Oxygen-Transfer Agents. Molecules 2015; 20:10205-43. [PMID: 26046320 PMCID: PMC6272618 DOI: 10.3390/molecules200610205] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/23/2015] [Accepted: 06/01/2015] [Indexed: 11/16/2022] Open
Abstract
A variety of selenium compounds were proven to be useful reagents and catalysts for organic synthesis over the past several decades. The most interesting aspect, which emerged in recent years, concerns application of hydroperoxide/selenium(IV) oxide and hydroperoxide/organoselenium catalyst systems, as "green reagents" for the oxidation of different organic functional groups. The topic of oxidations catalyzed by organoselenium derivatives has rapidly expanded in the last fifteen years This paper is devoted to the synthetic applications of the oxidation reactions mediated by selenium compounds such as selenium(IV) oxide, areneseleninic acids, their anhydrides, selenides, diselenides, benzisoselenazol-3(2H)-ones and other less often used other organoselenium compounds. All these compounds have been successfully applied for various oxidations useful in practical organic syntheses such as epoxidation, 1,2-dihydroxylation, and α-oxyfunctionalization of alkenes, as well as for ring contraction of cycloalkanones, conversion of halomethyl, hydroxymethyl or active methylene groups into formyl groups, oxidation of carbonyl compounds into carboxylic acids and/or lactones, sulfides into sulfoxides, and secondary amines into nitrones and regeneration of parent carbonyl compounds from their azomethine derivatives. Other reactions such as dehydrogenation and aromatization, active carbon-carbon bond cleavage, oxidative amidation, bromolactonization and oxidation of bromide for subsequent reactions with alkenes are also successfully mediated by selenium (IV) oxide or organoselenium compounds. The oxidation mechanisms of ionic or free radical character depending on the substrate and oxidant are discussed. Coverage of the literature up to early 2015 is provided. Links have been made to reviews that summarize earlier literature and to the methods of preparation of organoselenium reagents and catalysts.
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29
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Pentacyclic triterpene derivatives possessing polyhydroxyl ring A inhibit gram-positive bacteria growth by regulating metabolism and virulence genes expression. Eur J Med Chem 2015; 95:64-75. [PMID: 25794790 DOI: 10.1016/j.ejmech.2015.01.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 01/06/2015] [Accepted: 01/08/2015] [Indexed: 11/21/2022]
Abstract
The hydroxyl group in ring A of pentacyclic triterpene is essential for antibacterial activity. Pentacyclic triterpenes bearing three hydroxyl groups in ring A were mainly found in plants and displayed significant antibacterial activity. However, no study reported how to obtain this type of compounds by chemical modification. In this study, twenty-five new pentacyclic triterpenes bearing polyhydroxyl ring A were synthesized from parental compounds ursolic acid (UA) and oleanolic acid (OA). Here, we showed that most of these derivatives displayed a significantly increased activity against Gram-positive bacteria compared to parental compounds in vitro. Some of these compounds exhibited minimum inhibitory concentration values of 1-3-fold more potent than the positive controls. The structure-activity relationship studies demonstrated that introducing two hydroxyl groups at positions C-1 and C-2 together with a small alkyl ester group at C-17 of UA and OA strongly enhanced growth-inhibiting activity against Gram-positive bacteria. The antibacterial mechanism of the active derivatives was shown to be involved in regulating the expression of genes associated with peptidoglycan and respiratory metabolisms, as well as virulence factor in bacteria. The enhanced potency and unique mechanism of action of these new pentacyclic triterpenes make them a promising antibacterial agent for further studies.
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30
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Panguluri NR, Panduranga V, Prabhu G, Vishwanatha TM, Sureshbabu VV. Synthesis of chiral Nβ-protected amino diselenides from the corresponding amino alkyl iodides using NaBH2Se3 as a selenating reagent and their conversion to seleninic acids. RSC Adv 2015. [DOI: 10.1039/c5ra06147d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of Nβ-protected amino diselenides and l-selenocystine methyl esters from amino alkyl iodides using NaBH2Se3 as an efficient selenating reagent is described. Further the synthesis of Nβ-protected amino seleninic acids using 35% aqueous H2O2 has been demonstrated.
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Affiliation(s)
- Nageswara Rao Panguluri
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore University
- Bangalore 560 001
- India
| | - Veladi Panduranga
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore University
- Bangalore 560 001
- India
| | - Girish Prabhu
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore University
- Bangalore 560 001
- India
| | - T. M. Vishwanatha
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore University
- Bangalore 560 001
- India
| | - Vommina V. Sureshbabu
- Peptide Research Laboratory
- Department of Studies in Chemistry
- Bangalore University
- Bangalore 560 001
- India
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31
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Zielińska-Błajet M, Boratyński PJ, Palus J, Skarżewski J. Chiral benzisoselenazolones: conformational analysis based on experimental and DFT calculated 77Se NMR. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Efficient method for the oxidation of aldehydes and diols with tert-butylhydroperoxide under transition metal-free conditions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.101] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Imidazolium-containing diselenides for catalytic oxidations with hydrogen peroxide and sodium bromide in aqueous solutions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.08.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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de Torres M, Jiménez-Osés G, Mayoral JA, Pires E, Blanco RM, Fernández O. Evaluation of several catalytic systems for the epoxidation of methyl oleate using H2O2 as oxidant. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Giurg M, Muchalski H, Kowal E. OxofunctionalizedTrans-2-carboxycinnamic Acids by Catalytic Domino Oxidation of Naphthols and Hydronaphthoquinones. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.561945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Jiao A, Yang N, Wang J, Xu X, Jin Z. Cyclodextrin-derived chalcogenides as glutathione peroxidase mimics and their protection of mitochondria against oxidative damage. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0156-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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37
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Mercier EA, Smith CD, Parvez M, Back TG. Cyclic Seleninate Esters as Catalysts for the Oxidation of Sulfides to Sulfoxides, Epoxidation of Alkenes, and Conversion of Enamines to α-Hydroxyketones. J Org Chem 2012; 77:3508-17. [DOI: 10.1021/jo300313v] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eric A. Mercier
- Department
of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - Chris D. Smith
- Department
of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - Masood Parvez
- Department
of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
| | - Thomas G. Back
- Department
of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N 1N4
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38
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Andrade LH, Pedrozo EC, Leite HG, Brondani PB. Oxidation of organoselenium compounds. A study of chemoselectivity of phenylacetone monooxygenase. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.07.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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van der Toorn JC, Kemperman G, Sheldon RA, Arends IWCE. Studies on Substituted Aromatic Diselenides as Catalysts for Selective Alcohol Oxidation Using tert-Butyl Hydroperoxide. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100487] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Hua G, Fuller AL, Slawin AM, Woollins JD. Formation of new organoselenium heterocycles and ring reduction of 10-membered heterocycles into seven-membered heterocycles. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.12.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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García-Marín H, van der Toorn JC, Mayoral JA, García JI, Arends IWE. Epoxidation of cyclooctene and cyclohexene with hydrogen peroxide catalyzed by bis[3,5-bis(trifluoromethyl)-diphenyl] diselenide: Recyclable catalyst-containing phases through the use of glycerol-derived solvents. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcata.2010.10.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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Balkrishna SJ, Bhakuni BS, Chopra D, Kumar S. Cu-Catalyzed Efficient Synthetic Methodology for Ebselen and Related Se−N Heterocycles. Org Lett 2010; 12:5394-7. [PMID: 21053969 DOI: 10.1021/ol102027j] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shah Jaimin Balkrishna
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Bhagat Singh Bhakuni
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER), Bhopal, MP 462 023, India
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43
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Radchenko OS, Sigida EN, Balaneva NN, Dmitrenok PS, Novikov VL. Abnormal reactions of 2-methoxy-4,9-dimethyl-1-nitroacridine with selenous acid and selenium(IV) oxide. Synthesis of 1H-selenopheno[2,3,4-k,l]acridine-1-one: A new seleno-containing ring system. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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45
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Kamata K, Ishimoto R, Hirano T, Kuzuya S, Uehara K, Mizuno N. Epoxidation of Alkenes with Hydrogen Peroxide Catalyzed by Selenium-Containing Dinuclear Peroxotungstate and Kinetic, Spectroscopic, and Theoretical Investigation of the Mechanism. Inorg Chem 2010; 49:2471-8. [DOI: 10.1021/ic902381b] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keigo Kamata
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Ryo Ishimoto
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tomohisa Hirano
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinjiro Kuzuya
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazuhiro Uehara
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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46
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Kamata K, Hirano T, Kuzuya S, Mizuno N. Hydrogen-bond-assisted epoxidation of homoallylic and allylic alcohols with hydrogen peroxide catalyzed by selenium-containing dinuclear peroxotungstate. J Am Chem Soc 2009; 131:6997-7004. [PMID: 19408944 DOI: 10.1021/ja901289r] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of peroxotungstates (H(2)WO(4) + H(2)O(2)) with H(2)SeO(4) gave the novel selenium-containing dinuclear tungsten species, (TBA)(2)[SeO(4){WO(O(2))(2)}(2)] (I, TBA = [(n-C(4)H(9))(4)N](+)), which was characterized by elemental analysis, IR, Raman, UV-vis, (77)Se NMR, (183)W NMR, and CSI-MS. Various kinds of homoallylic and allylic alcohols were efficiently epoxidized to the corresponding epoxy alcohols in high yields with 1 equiv. H(2)O(2) with respect to the substrates. Compound I showed the highest catalytic activity for H(2)O(2)-based epoxidation of homoallylic and allylic alcohols among selenium and tungsten complexes. The turnover frequency reached up to 150 h(-1) in a 10 mmol-scale epoxidation of cis-3-hexen-1-ol and this value was the highest among those reported for the transition-metal catalyzed epoxidation of homoallylic alcohols with H(2)O(2). The kinetic, mechanistic, computational studies showed that the stabilization of the transition-state by the hydrogen bonding between I and the substrates results in the high reactivity for the I-catalyzed epoxidation of homoallylic and allylic alcohols. The nature of the hetero atoms in the di- and tetranuclear peroxotungstates with XO(4)(n-) ligands (X = As(V), P(V), S(VI), Si(IV), etc.) was crucial in controlling the Lewis acidity of the peroxotungstates, which significantly affects their electrophilic oxygen transfer reactivity. All the data of the structural, kinetic, spectroscopic, and computational comparison show that the dimeric peroxotungstate unit, {WO(O(2))(2)}(2), in I is activated by the SeO(4)(2-) ligand.
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Affiliation(s)
- Keigo Kamata
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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47
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Affiliation(s)
- Lars Uehlin
- a School of Chemistry , Cardiff University , Cardiff, UK
| | - Thomas Wirth
- a School of Chemistry , Cardiff University , Cardiff, UK
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48
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49
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Hua G, Li Y, Fuller AL, Slawin AMZ, Woollins JD. Facile Synthesis and Structure of Novel 2,5-Disubstituted 1,3,4-Selenadiazoles. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900013] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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van der Toorn JC, Kemperman G, Sheldon RA, Arends IWCE. Diphenyldiselenide-Catalyzed Selective Oxidation of Activated Alcohols with tert-Butyl Hydroperoxide: New Mechanistic Insights. J Org Chem 2009; 74:3085-9. [DOI: 10.1021/jo900059y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John C. van der Toorn
- Laboratory for Biocatalysis and Organic Chemistry, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Process Chemistry, Schering-Plough, Molenstraat 110, 5342 CC Oss, The Netherlands
| | - Gerjan Kemperman
- Laboratory for Biocatalysis and Organic Chemistry, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Process Chemistry, Schering-Plough, Molenstraat 110, 5342 CC Oss, The Netherlands
| | - Roger A. Sheldon
- Laboratory for Biocatalysis and Organic Chemistry, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Process Chemistry, Schering-Plough, Molenstraat 110, 5342 CC Oss, The Netherlands
| | - Isabel W. C. E. Arends
- Laboratory for Biocatalysis and Organic Chemistry, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, and Department of Process Chemistry, Schering-Plough, Molenstraat 110, 5342 CC Oss, The Netherlands
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