Synthesis of new ruthenium based catalysts for metathesis of methyl esters derived from vegetable oils
type: Dataset
description: The development of efficient ruthenium based catalysts has contributed to the development of olefin metathesis. This reaction catalyzed by tungsten, rhenium or molybdenum complexes, was applied, until now, to non-fonctionalized olefins. The use of ruthenium precursors allowed to broaden range of applications of olefin metathesis owing to their high tolerance to various organic functions. Indeed, methyl esters of vegetable oils can be converted into chemical base by metathesis in the presence of ruthenium based catalysts. In this study, we report ruthenium complexes reactivities for ethenolysis of methyl oleate as well as the design and the characterization of new systems. We describe the synthesis of new ruthenium catalysts containing cyclic alkyl(amino)carbenes and the evaluation of their performances. We show that these precatalysts display interesting catalytic properties for the ethenolysis of methyl oleate. Modifications of the carbenes ligands architecture provide the possibility to create novel catalysts as the functionalization of the isopropoxybenzylidene ligand which allowed immobilization of catalysts in ionic liquid. Besides, attempts to coordinate other ligands, such as fluorenylidène and silylene, able to afford active complexes will be discuss.
landing page: https://theses.hal.science/tel-00817291
identifier: NNT: 2009LYO10083
keyword: carbene-aminoalkyle-cyclique
keyword: carbene-n-heterocyclique
keyword: catalyse-homogene
keyword: chimothechemical-sciencesother
keyword: cyclic-alkylamino-carbene
keyword: ethenolyse
keyword: ethenolysis
keyword: immobilisation
keyword: immobilization
keyword: infoeu-reposemanticsdoctoralthesis
keyword: metathese
keyword: metathesis
keyword: methyl-oleate
keyword: n-heterocyclic-carbene
keyword: oleate-de-methyle
keyword: ruthenium
keyword: silylene
keyword: theses
issued: 2026-05-11T08:19:39.326243
modified: 2026-05-11T08:19:39.326248
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Synthesis of new ruthenium based catalysts for metathesis of methyl esters derived from vegetable oils
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00817291
issued: 2026-05-11T08:19:39.328579
modified: 2026-05-11T08:19:39.304014