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<dc:title xml:lang="fr">Des nosylates à la synthèse totale de diènediynes</dc:title>
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<dc:subject xml:lang="fr">Synthèse totale</dc:subject>
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<dcterms:abstract xml:lang="fr">La synthèse totale de la N1999-A2 représente un défi synthétique qui a intéressé plusieurs grandes équipes spécialisées dans ce domaine. L’approche synthétique envisagée repose sur le savoir-faire du laboratoire. Elle permet de former le cœur diènediyne dans les dernières étapes de la synthèse. Nous avons réussi à réaliser le premier couplage des deux synthons clefs, une avancée majeure dans le cadre de notre approche synthétique. Ce travail a aussi permis le développement de nouvelles méthodologies. Notamment les couplages croisés au palladium avec un nouveau type de partenaire électrophile stable : les nosylates d’aryle ou vinyle. Cette découverte permettra de compenser l’instabilité de plusieurs intermédiaires synthétiques clefs (triflates d’énol).</dcterms:abstract>
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