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<dc:title xml:lang="fr">Développement de nouvelles méthodes de trifluorométhoxylation et de synthèse de fluorures d’acyles, plus économiques, plus polyvalentes et plus sûres</dc:title>
<dcterms:alternative xml:lang="en">Chemography-driven modeling of drug resistance and generation of potent antimicrobial peptides</dcterms:alternative>
<dc:subject xml:lang="fr">Chimie du fluor</dc:subject>
<dc:subject xml:lang="fr">Groupe trifluorométhoxy</dc:subject>
<dc:subject xml:lang="fr">Anion trifluorométhanolate</dc:subject>
<dc:subject xml:lang="fr">Trifluorométhoxylation</dc:subject>
<dc:subject xml:lang="fr">Fluoroformylation</dc:subject>
<dc:subject xml:lang="fr">Cycles hétéroaromatiques</dc:subject>
<dc:subject xml:lang="en">Florine chemistry</dc:subject>
<dc:subject xml:lang="en">Trifluoromethoxy group</dc:subject>
<dc:subject xml:lang="en">Trifluoromethoxide anion</dc:subject>
<dc:subject xml:lang="en">Trifluorométhoxylation</dc:subject>
<dc:subject xml:lang="en">Fluoroformylation</dc:subject>
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<tef:elementdEntree autoriteExterne="23635177X" autoriteSource="Sudoc">Composés aromatiques hétérocycliques</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Le groupe trifluorométhoxy est peu représenté parmi les composés biologiquement actifs. Ses propriétés physico-chimiques uniques (effets électroniques, géométrie, lipophilie…) le rendent néanmoins très intéressant. De nombreuses méthodes ont été développées pour introduire ce groupe sur des molécules. La trifluorométhoxylation directe nucléophile est la catégorie de trifluorométhoxylation la plus développée. Cependant, les méthodes existantes nécessitent souvent des sources d’anion trifluorométhanolate toxiques, non commerciales ou peu pratiques. Récemment, le 2,4-dinitro(trifluorométhoxy)benzène, en combinaison avec la 4-diméthylaminopyridine, a été utilisé pour générer un sel de trifluorométhanolate stable. Cette nouvelle source d’anion trifluorométhanolate, pratique et abordable, pourrait pallier de nombreux inconvénients liés aux précédentes sources employées. Nos travaux ont porté sur son utilisation pour obtenir diverses molécules trifluorométhoxylées. Elle a aussi été utilisée dans une méthode de fluoroformylation de cycles hétéroaromatiques électro-enrichis de façon rapide, pratique et peu onéreuse.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The trifluoromethoxy group is poorly represented among biologically active compounds. However, its unique physico-chemical properties —electronic effects, geometry, lipophilicity…— make it highly interesting. Many methods have been developed to introduce this group onto molecules. Direct nucleophilic trifluoromethoxylation is the most developed class of trifluoromethoxylation. However, existing methods often require toxic, non-commercial or impractical sources of trifluoromethoxide anion. Recently, 2,4-dinitro(trifluoromethoxy)benzene has been used in combination with 4-dimethylaminopyridine to produce a stable trifluoromethoxide salt. This new source of trifluoromethoxide anion is practical and affordable and could overcome many of the drawbacks associated with previous sources. Our work has focused on using this source to obtain various trifluoromethoxylated molecules. It has also been used in a rapid, convenient and inexpensive method for the fluoroformylation of electronically enriched heteroaromatic rings.</dcterms:abstract>
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