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Turovska B, Goba I, Lielpetere A, Glezer V. Electrochemistry of pyridine derivatives. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05425-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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2
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Sun K, Xu Y, Dumur F, Morlet-Savary F, Chen H, Dietlin C, Graff B, Lalevée J, Xiao P. In silico rational design by molecular modeling of new ketones as photoinitiators in three-component photoinitiating systems: application in 3D printing. Polym Chem 2020. [DOI: 10.1039/c9py01874c] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
New photoinitiators for 3D printing were in silico developed by molecular modeling.
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Affiliation(s)
- Ke Sun
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Yangyang Xu
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Frédéric Dumur
- Aix Marseille Univ
- CNRS
- ICR UMR 7273
- F-13397 Marseille
- France
| | - Fabrice Morlet-Savary
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Hong Chen
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Céline Dietlin
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Bernadette Graff
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse
- IS2M-UMR CNRS 7361
- Cedex 68057 Mulhouse
- France
| | - Pu Xiao
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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3
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Pardo-Jiménez V, Barrientos C, Pérez-Cruz K, Navarrete-Encina P, Olea-Azar C, Nuñez-Vergara LJ, Squella J. Synthesis and electrochemical oxidation of hybrid compounds: dihydropyridine-fused coumarins. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.01.137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Sankar M, Nowicka E, Carter E, Murphy DM, Knight DW, Bethell D, Hutchings GJ. The benzaldehyde oxidation paradox explained by the interception of peroxy radical by benzyl alcohol. Nat Commun 2014; 5:3332. [PMID: 24567108 DOI: 10.1038/ncomms4332] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 01/28/2014] [Indexed: 11/09/2022] Open
Abstract
Benzaldehyde readily undergoes autoxidation to form benzoic acid on exposure to air at room temperature. Yet it can be formed in high yield from, for example, benzyl alcohol by oxidation using a variety of procedures and catalysts. Here we report the evidence to resolve this apparent paradox. It is confirmed that benzyl alcohol (and a number of other alcohols), even at low concentrations in benzaldehyde, inhibits the autoxidation. Furthermore we report on the structural features required for inhibition. Electron paramagnetic resonance spin trapping experiments demonstrate that benzyl alcohol intercepts, by hydrogen atom transfer, the benzoylperoxy radicals that play a key role in benzaldehyde autoxidation. A similar inhibition effect has also been observed for the aliphatic octanal/1-octanol system.
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Affiliation(s)
| | - Ewa Nowicka
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Emma Carter
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Damien M Murphy
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - David W Knight
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Donald Bethell
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Graham J Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
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5
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Electrochemical oxidation of C4-vanillin- and C4-isovanillin-1,4-dihydropyridines in aprotic medium: Reactivity towards free radicals. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.04.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Núñez-Vergara LJ, Salazar R, Camargo C, Carbajo J, Conde B, Navarrete-Encina PA, Squella JA. Oxidation of C4-hydroxyphenyl 1,4-dihydropyridines in dimethylsulfoxide and its reactivity towards alkylperoxyl radicals in aqueous medium. Bioorg Med Chem 2007; 15:4318-26. [PMID: 17446078 DOI: 10.1016/j.bmc.2007.03.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2006] [Revised: 03/12/2007] [Accepted: 03/14/2007] [Indexed: 11/21/2022]
Abstract
This work reports the electrochemical oxidation of three newly synthesized C4-hydroxyphenyl-substituted 1,4-dihydropyridine derivatives in dimethylsulfoxide. The reactivity of the compounds with ABAP-derived alkylperoxyl radicals in aqueous buffer pH 7.4, was also studied. The oxidation mechanism involves the formation of the unstable dihydropyridyl radical, which was confirmed by controlled-potential electrolysis (CPE) and ESR experiments. The final product of the CPE, that is, pyridine derivative, was identified by GC-MS technique for the three derivatives. A direct reactivity of the synthesized compounds toward ABAP-derived alkylperoxyl radicals was found. The pyridine derivative was identified by GC-MS as the final product of the reaction. Results reveal that this type of 1,4-DHPs significantly reacts with the radicals, even compared with commercial 1,4-DHP drugs with a well-known antioxidant ability.
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Affiliation(s)
- Luis J Núñez-Vergara
- Laboratory of Biolectrochemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santiago, Chile.
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7
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Arguello J, Núñez-Vergara L, Sturm J, Squella J. Voltammetric oxidation of Hantzsch 1,4-dihydropyridines in protic media: substituent effect on positions 3,4,5 of the heterocyclic ring. Electrochim Acta 2004. [DOI: 10.1016/j.electacta.2004.05.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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López-Alarcón C, Núñez-Vergara L, Squella J. Voltammetric oxidation of Hantzsch 1,4-dihydropyridines in protic and aprotic media: relevance of the substitution on N position. Electrochim Acta 2003. [DOI: 10.1016/s0013-4686(03)00292-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Mohan H, Mittal JP, Srividya N, Ramamurthy P. One-Electron Reduction of 3,3,6,6-Tetramethyl-3,4,6,7,9,10-hexahydro-(1,8)-(2H,5H)-acridinedione: A Pulse Radiolysis Study. J Phys Chem A 1998. [DOI: 10.1021/jp9809989] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Srividya N, Ramamurthy P, Shanmugasundaram P, Ramakrishnan VT. Synthesis, Characterization, and Electrochemistry of Some Acridine-1,8-dione Dyes. J Org Chem 1996. [DOI: 10.1021/jo9600316] [Citation(s) in RCA: 129] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. Srividya
- Departments of Inorganic Chemistry and Organic Chemistry, School of Chemistry, University of Madras, Madras 600 025, India
| | - P. Ramamurthy
- Departments of Inorganic Chemistry and Organic Chemistry, School of Chemistry, University of Madras, Madras 600 025, India
| | - P. Shanmugasundaram
- Departments of Inorganic Chemistry and Organic Chemistry, School of Chemistry, University of Madras, Madras 600 025, India
| | - V. T. Ramakrishnan
- Departments of Inorganic Chemistry and Organic Chemistry, School of Chemistry, University of Madras, Madras 600 025, India
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11
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Klíma J, Volke J, Urban J. Elucidation of mechanisms of organic electrode processes by spin trapping. Electroreduction of substituted pyrylium cations. Electrochim Acta 1991. [DOI: 10.1016/0013-4686(91)85181-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Kovacic P, Edwards WD, Natale NR, Sridhar R, Kiser PF. Theoretical calculations on calcium channel drugs: is electron transfer involved mechanistically? Chem Biol Interact 1990; 75:61-70. [PMID: 2364458 DOI: 10.1016/0009-2797(90)90022-f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Theoretical studies were done on calcium channel drugs in order to gain insight into the mode of action. Empirical force field calculations with nifedipine, a calcium channel antagonist, indicate that the E-conformation at the ring juncture is lower in energy than the Z-conformation. This energy difference is only 0.2 kcal/mol when the esters in the 3- and 5-positions of the dihydropyridine (DHP) ring are both synperiplanar (sp, sp). Molecular orbital calculations on the ground and excited states in the Z-conformation with the esters in the (ap, sp) conformation show a low lying excited state with substantial intramolecular electron transfer (ET) character. This excited state is only 1.8 eV higher in energy than the ground state and corresponds to a transfer of approximately 0.3 electron from the DHP ring to the nitrobenzene moiety. We suggest that ET may play an important role in the mechanism of action, either intramolecular or, as previously proposed, intermolecular, along with lipophilicity and steric effects.
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Affiliation(s)
- P Kovacic
- Department of Chemistry, University of Wisconsin-Milwaukee 53201
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13
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Waller AM, Compton RG. Chapter 7 In-Situ Electrochemical ESR. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/s0069-8040(08)70322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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14
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Largeron M, Fleury M. Electrochemical synthesis and reactivity of 3,5-dicyano-1,2,4,6-tetramethylpyridinium. J Electroanal Chem (Lausanne) 1988. [DOI: 10.1016/0022-0728(88)80173-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Electrochemical oxidation mechanisms of different type 1,4-dihydropyridine derivatives in acetonitrile. Electrochim Acta 1987. [DOI: 10.1016/0013-4686(87)90034-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Stradins J, Ogle J, Kadysh V, Baumane L, Gavars R, Duburs G. Electrochemical oxidation of N-substituted 1,4- and 1,2-dihydropyridine derivatives. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0022-0728(87)80036-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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