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Maksimchuk N, Puiggalí-Jou J, Zalomaeva OV, Larionov KP, Evtushok VY, Soshnikov IE, Solé-Daura A, Kholdeeva OA, Poblet JM, Carbó JJ. Resolving the Mechanism for H 2O 2 Decomposition over Zr(IV)-Substituted Lindqvist Tungstate: Evidence of Singlet Oxygen Intermediacy. ACS Catal 2023; 13:10324-10339. [PMID: 37560188 PMCID: PMC10407852 DOI: 10.1021/acscatal.3c02416] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/04/2023] [Indexed: 08/11/2023]
Abstract
The decomposition of hydrogen peroxide (H2O2) is the main undesired side reaction in catalytic oxidation processes of industrial interest that make use of H2O2 as a terminal oxidant, such as the epoxidation of alkenes. However, the mechanism responsible for this reaction is still poorly understood, thus hindering the development of design rules to maximize the efficiency of catalytic oxidations in terms of product selectivity and oxidant utilization efficiency. Here, we thoroughly investigated the H2O2 decomposition mechanism using a Zr-monosubstituted dimeric Lindqvist tungstate, (Bu4N)6[{W5O18Zr(μ-OH)}2] ({ZrW5}2), which revealed high activity for this reaction in acetonitrile. The mechanism of the {ZrW5}2-catalyzed H2O2 degradation in the absence of an organic substrate was investigated using kinetic, spectroscopic, and computational tools. The reaction is first order in the Zr catalyst and shows saturation behavior with increasing H2O2 concentration. The apparent activation energy is 11.5 kcal·mol-1, which is significantly lower than the values previously found for Ti- and Nb-substituted Lindqvist tungstates (14.6 and 16.7 kcal·mol-1, respectively). EPR spectroscopic studies indicated the formation of superoxide radicals, while EPR with a specific singlet oxygen trap, 2,2,6,6-tetramethylpiperidone (4-oxo-TEMP), revealed the generation of 1O2. The interaction of test substrates, α-terpinene and tetramethylethylene, with H2O2 in the presence of {ZrW5}2 corroborated the formation of products typical of the oxidation processes that engage 1O2 (endoperoxide ascaridole and 2,3-dimethyl-3-butene-2-hydroperoxide, respectively). While radical scavengers tBuOH and p-benzoquinone produced no effect on the peroxide product yield, the addition of 4-oxo-TEMP significantly reduced it. After optimization of the reaction conditions, a 90% yield of ascaridole was attained. DFT calculations provided an atomistic description of the H2O2 decomposition mechanism by Zr-substituted Lindqvist tungstate catalysts. Calculations showed that the reaction proceeds through a Zr-trioxidane [Zr-η2-OO(OH)] key intermediate, whose formation is the rate-determining step. The Zr-substituted POM activates heterolytically a first H2O2 molecule to generate a Zr-peroxo species, which attacks nucleophilically to a second H2O2, causing its heterolytic O-O cleavage to yield the Zr-trioxidane complex. In agreement with spectroscopic and kinetic studies, the lowest-energy pathway involves dimeric Zr species and an inner-sphere mechanism. Still, we also found monomeric inner- and outer-sphere pathways that are close in energy and could coexist with the dimeric one. The highly reactive Zr-trioxidane intermediate can evolve heterolytically to release singlet oxygen and also decompose homolytically, producing superoxide as the predominant radical species. For H2O2 decomposition by Ti- and Nb-substituted POMs, we also propose the formation of the TM-trioxidane key intermediate, finding good agreement with the observed trends in apparent activation energies.
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Affiliation(s)
| | - Jordi Puiggalí-Jou
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, 43005 Tarragona, Spain
| | - Olga V. Zalomaeva
- Boreskov
Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Kirill P. Larionov
- Boreskov
Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | | | - Igor E. Soshnikov
- Boreskov
Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Albert Solé-Daura
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, 43005 Tarragona, Spain
| | - Oxana A. Kholdeeva
- Boreskov
Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Josep M. Poblet
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, 43005 Tarragona, Spain
| | - Jorge J. Carbó
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, 43005 Tarragona, Spain
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Lüke D, Zell L, Oetken M. Katalytischer Zerfall von Wasserstoffperoxid durch Molybdat. CHEM UNSERER ZEIT 2022. [DOI: 10.1002/ciuz.202100027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Lukas Zell
- Pädagogische Hochschule Freiburg Institut für Chemie, Physik, Technik und ihre Didaktiken Fachbereich Chemie Kunzenweg 21 79117 Freiburg
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Sahli F, Vileno B, Gourlaouen C, Giménez-Arnau E. Autoxidized citronellol: Free radicals as potential sparkles to ignite the fragrance induced skin sensitizing pathway. Food Chem Toxicol 2022; 166:113201. [PMID: 35671905 DOI: 10.1016/j.fct.2022.113201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/23/2022] [Accepted: 06/01/2022] [Indexed: 11/19/2022]
Abstract
Citronellol, one of the most used fragrance compounds worldwide, is one ingredient of Fragrance Mix II used to assess skin allergy to fragrances in dermatitis patients. Pure citronellol is non-allergenic. Main issue is it autoxidizes when exposed to air becoming then allergenic. The increased skin sensitizing potency of air-exposed citronellol has been attributed to the hydroperoxides detected at high concentrations in the oxidation mixtures. It has been postulated that such hydroperoxides can give rise to specific antigens, although chemical mechanisms involved and the pathogenesis are far from being unraveled. Hydroperoxides are believed to react with skin proteins through mechanisms involving radical intermediates. Here, insights on the potential radicals involved in skin sensitization to citronellol hydroperoxides are given. The employed tool is a multispectroscopic approach based on (i) electron paramagnetic resonance and spin trapping, that confirmed the formation of oxygen- and carbon-radicals when exposing reconstructed human epidermis to concentrations of hydroperoxides close to those used for patch testing patients with air-oxidized citronellol; (ii) liquid chromatography-mass spectrometry, that proved the reaction with amino acids such as cysteine and histidine, known to be involved in radical processes and (iii) density functional theory calculations, that gave an overview on the preferential paths for radical degradation.
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Affiliation(s)
- Fatma Sahli
- Institut de Chimie, UMR 7177, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000, Strasbourg, France
| | - Bertrand Vileno
- Institut de Chimie, UMR 7177, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000, Strasbourg, France
| | - Christophe Gourlaouen
- Institut de Chimie, UMR 7177, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000, Strasbourg, France
| | - Elena Giménez-Arnau
- Institut de Chimie, UMR 7177, CNRS, Université de Strasbourg, 4 Rue Blaise Pascal, 67000, Strasbourg, France.
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Yan X, Shi Z, Jiao J, Si C, Han Q. An Isopolymolybdate-Incorporated Metal-Organic Framework with Sulfite Oxidase-Mimicking Activity for Photocatalytic Oxidation of Sulfides Utilizing In Situ-Generated Singlet Oxygen. Inorg Chem 2021; 60:16810-16816. [PMID: 34672625 DOI: 10.1021/acs.inorgchem.1c02701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Developing new photocatalysts for sulfide oxidation utilizing in situ-generated 1O2 is very significant. Inspired by natural enzymatic processes, we synthesized a mimic sulfite oxidase (SO), {[Co(Mo4O13)(TPT)2]} (CoMo-TPT), by incorporating an isopolymolybdate anion [Mo4O13]2- into a 2,4,6-tri(4-pyridyl)-1,3,5-triazine (TPT)-based metal-organic framework under mild hydrothermal conditions. In this structure, {Mo4O13} units with intrinsic SO-like catalytic sites are beneficial for the selective oxidation of sulfite and thioether. The ultraviolet-visible spectra of CoMo-TPT exhibited strong absorption from 250 to 650 nm and potential application in the utilization of solar energy. Mott-Schottky measurements indicated that CoMo-TPT is an n-type semiconductor with a LUMO value of -0.70 V (vs NHE) and a HOMO value of 1.39 V. The transient photocurrent responses with strong current density cycles with visible light indicated CoMo-TPT has a high photochemical activity. The lower resistance indicated that CoMo-TPT has a higher efficiency of photoinduced electron and hole separation. CoMo-TPT displayed a high efficiency of 99% and a selectivity of 97.3% in photocatalytic oxidation of sulfides by utilizing in situ-generated 1O2 through a tandem process of formation of H2O2 from O2 followed by catalyzed disproportionation of H2O2.
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Affiliation(s)
- Xiaomei Yan
- Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Zhuolin Shi
- Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jiachen Jiao
- Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Chen Si
- Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Qiuxia Han
- Key Laboratory of Polyoxometalate Chemistry of Henan Province, Institute of Molecular and Crystal Engineering, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
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"Dark" Singlet Oxygen and Electron Paramagnetic Resonance Spin Trapping as Convenient Tools to Assess Photolytic Drug Degradation. J Pharm Sci 2017; 106:1310-1316. [PMID: 28108379 DOI: 10.1016/j.xphs.2017.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 12/28/2016] [Accepted: 01/10/2017] [Indexed: 11/23/2022]
Abstract
Forced degradation studies are an important tool for a systematic assessment of decomposition pathways and identification of reactive sites in active pharmaceutical ingredients (APIs). Two methodologies have been combined in order to provide a deeper understanding of singlet oxygen-related degradation pathways of APIs under light irradiation. First, we report that a "dark" singlet oxygen test enables the investigation of drug reactivity toward singlet oxygen independently of photolytic irradiation processes. Second, the photosensitizing properties of the API producing the singlet oxygen was proven and quantified by spin trapping and electron paramagnetic resonance analysis. A combination of these techniques is an interesting addition to the forced degradation portfolio as it can be used for (1) revealing unexpected degradation pathways of APIs due to singlet oxygen, (2) clarifying photolytic drug-drug interactions in fixed-dose combinations, and (3) synthesizing larger quantities of hardly accessible oxidative drug degradants.
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Lee JY, Jung MY. Effects and mechanisms of eugenol, isoeugenol, coniferylaldehyde and dihydroeugenol on the riboflavin-sensitized photooxidation of α-terpinene in methanol. Food Chem 2017; 220:289-294. [DOI: 10.1016/j.foodchem.2016.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 09/14/2016] [Accepted: 10/03/2016] [Indexed: 10/20/2022]
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Isoprenoid Alcohols are Susceptible to Oxidation with Singlet Oxygen and Hydroxyl Radicals. Lipids 2015; 51:229-44. [PMID: 26715533 PMCID: PMC4735226 DOI: 10.1007/s11745-015-4104-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 11/19/2015] [Indexed: 12/01/2022]
Abstract
Isoprenoids, as common constituents of all living cells, are exposed to oxidative agents—reactive oxygen species, for example, singlet oxygen or hydroxyl radicals. Despite this fact, products of oxidation of polyisoprenoids have never been characterized. In this study, chemical oxidation of isoprenoid alcohols (Prenol-2 and -10) was performed using singlet oxygen (generated in the presence of hydrogen peroxide/molybdate or upon photochemical reaction in the presence of porphyrin), oxygen (formed upon hydrogen peroxide dismutation) or hydroxyl radical (generated by the hydrogen peroxide/sonication, UV/titanium dioxide or UV/hydrogen peroxide) systems. The structure of the obtained products, hydroxy-, peroxy- and heterocyclic derivatives, was studied with the aid of mass spectrometry (MS) and nuclear magnetic resonance (NMR) methods. Furthermore, mass spectrometry with electrospray ionization appeared to be a useful analytical tool to detect the products of oxidation of isoprenoids (ESI–MS analysis), as well as to establish their structure on the basis of the fragmentation spectra of selected ions (ESI–MS/MS analysis). Taken together, susceptibility of polyisoprenoid alcohols to various oxidizing agents was shown for the first time.
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Hong B, Leclercq L, Collinet-Fressancourt M, Lai J, Bauduin P, Aubry JM, Nardello-Rataj V. Synergy between bis(dimethyldioctylammonium) molybdate and tetraethylene glycol monooctyl ether: A winning combination for interfacial catalysis in thermo-controlled and switchable microemulsions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Fressancourt-Collinet M, Hong B, Leclercq L, Alsters PL, Aubry JM, Nardello-Rataj V. Acidic Three-Liquid-Phase Microemulsion Systems Based on Balanced Catalytic Surfactant for Epoxidation and Sulfide Oxidation under Mild Conditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200514] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Hang J, Ghorai P, Finkenstaedt-Quinn SA, Findik I, Sliz E, Kuwata KT, Dussault PH. Generation of singlet oxygen from fragmentation of monoactivated 1,1-dihydroperoxides. J Org Chem 2012; 77:1233-43. [PMID: 22283731 DOI: 10.1021/jo202265j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first singlet excited state of molecular oxygen ((1)O(2)) is an important oxidant in chemistry, biology, and medicine. (1)O(2) is most often generated through photosensitized excitation of ground-state oxygen. (1)O(2) can also be generated chemically through the decomposition of hydrogen peroxide and other peroxides. However, most of these "dark oxygenations" require water-rich media associated with short (1)O(2) lifetimes, and there is a need for oxygenations able to be conducted in organic solvents. We now report that monoactivated derivatives of 1,1-dihydroperoxides undergo a previously unobserved fragmentation to generate high yields of singlet molecular oxygen ((1)O(2)). The fragmentations, which can be conducted in a variety of organic solvents, require a geminal relationship between a peroxyanion and a peroxide activated toward heterolytic cleavage. The reaction is general for a range of skeletal frameworks and activating groups and, via in situ activation, can be applied directly to 1,1-dihydroperoxides. Our investigation suggests the fragmentation involves rate-limiting formation of a peroxyanion that decomposes via a Grob-like process.
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Affiliation(s)
- Jiliang Hang
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, USA
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11
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Kao D, Chaintreau A, Lepoittevin JP, Giménez-Arnau E. Synthesis of allylic hydroperoxides and EPR spin-trapping studies on the formation of radicals in iron systems as potential initiators of the sensitizing pathway. J Org Chem 2011; 76:6188-200. [PMID: 21648947 DOI: 10.1021/jo200948x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Many terpenes used as fragrance compounds autoxidize when exposed to air, forming allylic hydroperoxides that have the potential to be skin contact allergens. To trigger the immunotoxicity process that characterizes contact allergy, these hydroperoxides are supposed to bind covalently to proteins in the skin via radical pathways. We investigated the formation of reactive radical intermediates from 7-hydroperoxy-3,7-dimethylocta-1,5-dien-3-ol and 2-hydroperoxylimonene, responsible for the sensitizing potential acquired by autoxidized linalool and limonene. Both compounds were synthesized through new short and reproducible synthetic pathways. The hydroperoxide decomposition catalyzed by Fe(II)/Fe(III) redox systems, playing a key role in degradating peroxides in vivo, was examined by spin-trapping-EPR spectroscopy. Alkoxyl and carbon-centered free radicals derived from the hydroperoxides were successfully trapped by the spin-trap 5,5-dimethyl-1-pyrroline N-oxide, whereas peroxyl radicals were characterized by spin-trapping studies with 5-diethoxyphosphoryl-5-methyl-1-pyrroline N-oxide. Using liquid chromatography combined with mass spectrometry, we demonstrated the formation of adducts, via radical mechanisms induced by Fe(II)/Fe(III), between the hydroperoxides and N-acetylhistidine methyl ester, a model amino acid that is prone to radical reactions. Free radicals derived from these hydroperoxides can thus induce amino acid chemical modifications via radical mechanisms. The study of these mechanisms will help to understand the sensitizing potential of hydroperoxides.
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Affiliation(s)
- Dany Kao
- Laboratoire de Dermatochimie, Institut de Chimie de Strasbourg (UMR 7177), Université de Strasbourg, 4 Rue Blaise Pascal, 67081 Strasbourg, France
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12
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Ghorai P, Dussault PH. A new peroxide fragmentation: efficient chemical generation of (1O2) in organic media. Org Lett 2009; 11:4572-5. [PMID: 19772310 DOI: 10.1021/ol9018216] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Monoactivated derivatives of 1,1-dihydroperoxides undergo an unprecedented base-promoted fragmentation to efficiently generate singlet oxygen (1O2) in anhydrous organic solvents.
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Affiliation(s)
- Prasanta Ghorai
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, USA
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13
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Alsters PL, Jary W, Nardello-Rataj V, Aubry JM. “Dark” Singlet Oxygenation of β-Citronellol: A Key Step in the Manufacture of Rose Oxide. Org Process Res Dev 2009. [DOI: 10.1021/op900076g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul L. Alsters
- DSM Pharmaceutical Products, Innovative Synthesis and Catalysis, P.O. Box 16, 6160 MD Geleen, The Netherlands, DSM Fine Chemicals Austria, P.O. Box 296, 4021 Linz, Austria, and Université Lille 1, Sciences et Technologie, LCOM, Equipe “Oxydation et Physico-chimie de la Formulation”, CNRS UMR 8009, Bât. C6, 59655 Villeneuve d’Ascq Cedex, France
| | - Walther Jary
- DSM Pharmaceutical Products, Innovative Synthesis and Catalysis, P.O. Box 16, 6160 MD Geleen, The Netherlands, DSM Fine Chemicals Austria, P.O. Box 296, 4021 Linz, Austria, and Université Lille 1, Sciences et Technologie, LCOM, Equipe “Oxydation et Physico-chimie de la Formulation”, CNRS UMR 8009, Bât. C6, 59655 Villeneuve d’Ascq Cedex, France
| | - Véronique Nardello-Rataj
- DSM Pharmaceutical Products, Innovative Synthesis and Catalysis, P.O. Box 16, 6160 MD Geleen, The Netherlands, DSM Fine Chemicals Austria, P.O. Box 296, 4021 Linz, Austria, and Université Lille 1, Sciences et Technologie, LCOM, Equipe “Oxydation et Physico-chimie de la Formulation”, CNRS UMR 8009, Bât. C6, 59655 Villeneuve d’Ascq Cedex, France
| | - Jean-Marie Aubry
- DSM Pharmaceutical Products, Innovative Synthesis and Catalysis, P.O. Box 16, 6160 MD Geleen, The Netherlands, DSM Fine Chemicals Austria, P.O. Box 296, 4021 Linz, Austria, and Université Lille 1, Sciences et Technologie, LCOM, Equipe “Oxydation et Physico-chimie de la Formulation”, CNRS UMR 8009, Bât. C6, 59655 Villeneuve d’Ascq Cedex, France
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14
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Renirie R, Pierlot C, Wever R, Aubry JM. Singlet oxygenation in microemulsion catalysed by vanadium chloroperoxidase. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.05.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Griesbeck AG, Cho M. Singlet oxygen addition to homoallylic substrates in solution and microemulsion: novel secondary reactions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.10.094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Nardello-Rataj V, Caron L, Borde C, Aubry JM. Oxidation in Three-Liquid-Phase Microemulsion Systems Using “Balanced Catalytic Surfactants”. J Am Chem Soc 2008; 130:14914-5. [DOI: 10.1021/ja805220p] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Véronique Nardello-Rataj
- LCOM, Equipe Oxydation et Physico-Chimie de la Formulation, UMR CNRS 8009, Cité Scientifique, ENSCL, BP 90108, F-59652 Villeneuve d’Ascq, France
| | - Laurent Caron
- LCOM, Equipe Oxydation et Physico-Chimie de la Formulation, UMR CNRS 8009, Cité Scientifique, ENSCL, BP 90108, F-59652 Villeneuve d’Ascq, France
| | - Cédric Borde
- LCOM, Equipe Oxydation et Physico-Chimie de la Formulation, UMR CNRS 8009, Cité Scientifique, ENSCL, BP 90108, F-59652 Villeneuve d’Ascq, France
| | - Jean-Marie Aubry
- LCOM, Equipe Oxydation et Physico-Chimie de la Formulation, UMR CNRS 8009, Cité Scientifique, ENSCL, BP 90108, F-59652 Villeneuve d’Ascq, France
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Borde C, Nardello V, Wattebled L, Laschewsky A, Aubry JM. A gemini amphiphilic phase transfer catalyst for dark singlet oxygenation. J PHYS ORG CHEM 2008. [DOI: 10.1002/poc.1344] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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