Métathèse de dérivés d'huiles végétales catalysées par les complexes de ruthénium
Auteur / Autrice : | Xiaowei Miao |
Direction : | Christian Bruneau, Pierre H. Dixneuf |
Type : | Thèse de doctorat |
Discipline(s) : | Chimie |
Date : | Soutenance en 2010 |
Etablissement(s) : | Rennes 1 |
Ecole(s) doctorale(s) : | École doctorale Sciences de la matière (Rennes ; 1996-2016) |
Partenaire(s) de recherche : | autre partenaire : Université européenne de Bretagne (2007-2016) |
Mots clés
Résumé
With the scheduled end of the fossil era, the search for renewable carbon sources is a domain of intense researches. Among the potential renewable sources of raw materials, vegetable oils and fats have received much attention. Olefin metathesis is a very powerful tool in organic synthesis and polymer synthesis, and was shown to be a method of choice for the transformation of fat and oil derivatives. In this thesis, we have shown the ruthenium-catalyzed cross-metathesis of renewable fatty acid derivatives with acrylonitrile to give access to various N-containing compounds in high yields. Slow addition of catalyst was applied to improve TONs. The transformations of fatty acid derivatives with other functionalized olefins such as methyl acrylate, acrylic acid and acrolein were also performed with success. The metathesis catalyst residue was proven to be efficient hydrogenation catalyst in a sequential cross-metathesis/hydrogenation process leading to saturated amino-ester monomers.