Thèse soutenue

Synthèse et réactivité d'énaminones α-halogénodifluorométhylées : réactions de couplages anioniques et radicalaires, propriétés redox et élaboration de nouveaux édifices moléculaires

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Auteur / Autrice : Fabrice Fenain
Direction : Maurice Médebielle
Type : Thèse de doctorat
Discipline(s) : Chimie
Date : Soutenance en 2008
Etablissement(s) : Lyon 1

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Résumé

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The purpose of this work is the synthesis and design of new ways of functionalization of some fluorinated substrates : α-halogenodifluoromethylated enaminones. This study is an extension of a previous report dealing with a series of enaminones with aromatic amino moieties, and it will be about non-aromatic amino enaminones. The aim is to develop access to new heterocyclic structures. Anionic and radical coupling methods by cleavage of C-X bond (X= halogen) using Indium metal or electrochemistry have been developed, based upon C-C coupling reaction with electrophiles such as aromatic aldehydes and electron-rich olefins. The chemical behavior of the coupling adducts with halogenating agent has been investigated and new heterocycles obtained depending on the halogen source. New analogs of known tetrakis(dimethylamino)ethylene (TDAE) know as super-electron donors have been designed as part of a collaboration between our group and Pr W. R. Dolbier’s group at the University of Florida. Chelate properties have been used in the design of new mono and polymetallic molecular devices with various structures as monomers and linear chain polymers