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<dc:title xml:lang="fr">Préparation de rotaxanes incorporant une sous-unité pillar[5]arène</dc:title>
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<dc:subject xml:lang="fr">Chimie supramoléculaire</dc:subject>
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<dc:subject xml:lang="fr">Échange de bouchon</dc:subject>
<dc:subject xml:lang="fr">Machine moléculaire</dc:subject>
<dc:subject xml:lang="fr">Molécules mécaniquement imbriquées (MIMs)</dc:subject>
<dc:subject xml:lang="en">Supramolecular chemistry</dc:subject>
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<dc:subject xml:lang="en">Rotaxane</dc:subject>
<dc:subject xml:lang="en">Stoppers exchange</dc:subject>
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<dcterms:abstract xml:lang="fr">Les rotaxanes constituent un domaine de recherche particulièrement actif en chimie. Dans cette thèse, nous décrivons le potentiel de la stratégie de synthèse développée dans notre groupe pour la synthèse de rotaxanes par des réactions d’échange de bouchons. Nous avons ainsi montré qu’un [2]rotaxane possédant deux bouchons activés peut être mono-fonctionnalisé avec des rendements quasi-quantitatifs. Les dérivés de [2]rotaxanes mono-fonctionnalisés peuvent alors être utilisés pour conduire soit à des [2]rotaxanes, soit à des [3]rotaxanes, suivant la nature de la diamine utilisée. Ces méthodes de synthèse ont alors été utilisées pour la préparation de machines moléculaires. Nous avons montré que la position de macrocycle peut être contrôlée par un stimulus acide-base.</dcterms:abstract>
<dcterms:abstract xml:lang="en">Rotaxanes are a particularly active field of research in chemistry. In this thesis we describe the potential of the synthesis strategy developed in our group for the synthesis of new rotaxanes by the stopper exchange method. We have shown that a [2]rotaxane with two activated stoppers can be mono-functionalized in almost quantitative yields. To further explore the potential of mono-functionalized [2]rotaxane derivatives, we then used to give either [2]rotaxanes or [3]rotaxanes, depending on the nature of the diamine used. These synthetic methods were then used to prepare molecular machines. We have shown that the position of the macrocycle can be controlled by an acid-base stimulus.</dcterms:abstract>
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