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<dc:title xml:lang="fr">Les a-cyanoénamides : des synthons innovants pour la synthèse de composés polyfonctionalisés complexes</dc:title>
<dcterms:alternative xml:lang="en">α-Cyanoenamides : innovative synthons for the synthesis of complex polyfunctionalized compounds</dcterms:alternative>
<dc:subject xml:lang="fr">Cyanoénamides</dc:subject>
<dc:subject xml:lang="fr">Vinylsilanes</dc:subject>
<dc:subject xml:lang="fr">Hétérocycles</dc:subject>
<dc:subject xml:lang="fr">Réaction multicomposante</dc:subject>
<dc:subject xml:lang="fr">Houben- Hoesch</dc:subject>
<dc:subject xml:lang="fr">Groupements fluorés</dc:subject>
<dc:subject xml:lang="fr">Catalyse photorédox</dc:subject>
<dc:subject xml:lang="en">Α-cyanoenamides</dc:subject>
<dc:subject xml:lang="en">Vinylsilanes</dc:subject>
<dc:subject xml:lang="en">Heterocycles</dc:subject>
<dc:subject xml:lang="en">Multicomponent reaction</dc:subject>
<dc:subject xml:lang="en">Houben-Hoesch</dc:subject>
<dc:subject xml:lang="en">Fluorinated groups</dc:subject>
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<tef:elementdEntree autoriteExterne="197689116" autoriteSource="Sudoc">Catalyse photorédox</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Les α-cyanoénamines, connues depuis longtemps, présentent un potentiel synthétique encore sous-exploité, notamment en raison du manque de méthodes générales d’accès à ces composés. Dans la continuité des travaux de notre laboratoire sur le développement de méthodes régio- et stéréosélectives pour accéder efficacement aux α-cyanoénamides, analogues fonctionnalisés des α-cyanoénamines, cette thèse s’est tournée vers l’exploitation du potentiel de ces motifs comme synthons, en vue d’accéder, en peu d’étapes, à des structures polyfonctionnalisées complexes. D’une part, la valorisation des fonctions nitrile et vinylsilane a permis la formation de carbocycles et hétérocycles fonctionnalisés : une réaction de Houben-Hoesch a conduit à diverses 2-amidoindénones et une réaction multicomposante a permis la synthèse de 2,3-diaminofuranes. D’autre part, la réactivité radicophile des α-cyanoénamides a été exploitée pour l’introduction de groupements fluorés d’intérêt pharmaceutique par catalyse photorédox. L’ensemble de ces applications synthétiques a permis de mettre en lumière la grande diversité des transformations possibles de ces synthons, ouvrant la voie à de nombreuses perspectives.</dcterms:abstract>
<dcterms:abstract xml:lang="en">The synthetic potential of α-cyanoenamine compounds, which have been known for a long time, remains largely underexplored, mainly due to the lack of general methods for their access. Building on our laboratory’s work on regio- and stereoselective methods for efficient access to α-cyanoenamides, functionalized analogues of α-cyanoenamines, this thesis focuses on applying these motifs as synthons to access complex polyfunctionalized structures in few steps. On one hand, valorization of nitrile and vinylsilane functions enabled the formation of functionalized carbocycles and heterocycles: a Houben-Hoesch reaction led to various 2-amidoindenones, and a multicomponent reaction allowed the synthesis of 2,3-diaminofurans. On the other hand, the radical reactivity of α-cyanoenamides was exploited to introduce pharmaceutically relevant fluorinated groups via photoredox catalysis. Together, these synthetic applications highlight the broad diversity of transformations possible with these synthons, opening numerous perspectives.</dcterms:abstract>
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