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Theses

Catalyseurs d'oxydation et carbènes hétérocycliques organophosphorés

Abstract : In the first part of this study is presented the synthesis of a novel family of phosphorylated catalysts for oxidation that are performing and selective. We develop the synthesis of N-phosphonio imines that allow catalytic epoxidation of olefins. A detailed study shows how the reactivity of the imine function can easily be modulated by variation of the nature of the substituent which helps adapting the catalyst to the type of substrate to oxidize. In the second part, a novel synthesis of precursors of vinylidenephosphoranes carbenes, that is short and simple, is proposed. This synthesis could be applied with different kind of substituent which permits the easy modulation of the properties of this new family of vinylidenephosphorane carbenes. The first results show that these carbenes have a pronounced ambiphilic character with an especially high nucleophilicity as estimated by theoretical study. Tests in coordination chemistry are also presented and the first Au(I) complexe is isolated and characterized by X-ray diffraction study.
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Submitted on : Tuesday, June 2, 2009 - 4:05:49 PM
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  • HAL Id : tel-00390705, version 1

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A. El Kazzi. Catalyseurs d'oxydation et carbènes hétérocycliques organophosphorés. Chimie. Université Paul Sabatier - Toulouse III, 2008. Français. ⟨tel-00390705⟩

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