4-Mercaptoimidazoles derived from the ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
4-Mercaptoimidazoles derived from the naturally occurring antioxidant ovothiols 2. Computational and experimental approach of the radical scavenging mechanism
Auteur(s) :
Zoete, Vincent [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Vezin, Herve [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Bailly, Fabrice [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Vergoten, Gerard [Auteur]
Université de Lille
Catteau, Jean-Pierre [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Bernier, Jean-Luc [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Vezin, Herve [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Bailly, Fabrice [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Vergoten, Gerard [Auteur]
Université de Lille
Catteau, Jean-Pierre [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Bernier, Jean-Luc [Auteur]
Ecole Nationale Supérieure de Chimie de Lille [ENSCL]
Titre de la revue :
Free Radical Research
Numéro :
32
Pagination :
525-533
Éditeur :
Informa UK Limited
Date de publication :
2000-01
ISSN :
1029-2470
Mot(s)-clé(s) en anglais :
4-Mercaptoimidazoles
quantitative structure-activity relationship (QSAR)
ESR spectroscopy
redox potentials
radical scavenging
thiyl radical
quantitative structure-activity relationship (QSAR)
ESR spectroscopy
redox potentials
radical scavenging
thiyl radical
Discipline(s) HAL :
Chimie/Chimie théorique et/ou physique
Résumé en anglais : [en]
The radical-scavenging mechanism of fourteen 4-mercaptoimidazoles, derived from the natural family of ovothiols, was studied via a QSAR approach, cyclic voltammetry, ESR and NMR spectroscopy. A significant correlation was ...
Lire la suite >The radical-scavenging mechanism of fourteen 4-mercaptoimidazoles, derived from the natural family of ovothiols, was studied via a QSAR approach, cyclic voltammetry, ESR and NMR spectroscopy. A significant correlation was found between the DPPH scavenging abilities of test compounds and thermodynamic parameters like overall ease of disulphide formation. The production of a disulphide compound via thiyl radical formation is proposed. Upon DPPH scavenging, hydrogen abstraction from thiols yields transient short-lived thiyl radicals, which were characterised by ESR and rapidly dimerise to form a disulphide compound. Cyclic voltammetry showed that the best DPPH scavengers exhibit low oxidation potentials for their oxidation to disulphides.Lire moins >
Lire la suite >The radical-scavenging mechanism of fourteen 4-mercaptoimidazoles, derived from the natural family of ovothiols, was studied via a QSAR approach, cyclic voltammetry, ESR and NMR spectroscopy. A significant correlation was found between the DPPH scavenging abilities of test compounds and thermodynamic parameters like overall ease of disulphide formation. The production of a disulphide compound via thiyl radical formation is proposed. Upon DPPH scavenging, hydrogen abstraction from thiols yields transient short-lived thiyl radicals, which were characterised by ESR and rapidly dimerise to form a disulphide compound. Cyclic voltammetry showed that the best DPPH scavengers exhibit low oxidation potentials for their oxidation to disulphides.Lire moins >
Langue :
Anglais
Comité de lecture :
Non
Audience :
Internationale
Vulgarisation :
Non
Collections :
Date de dépôt :
2021-11-03T12:51:42Z
2021-11-09T08:44:33Z
2021-11-09T08:44:33Z
Fichiers
- Zoete et al. - 2000 - 4-Mercaptoimidazoles derived from the naturally occurring antioxidant ovothiols 2. Computational and experimental.pdf
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