In: Journal of Molecular Catalysis A: Chemical, 2004, vol. 218, no. 2, p. 171-177
Peroxyacetic acid (PAA) oxidizes alkanes in acetonitrile or acetic acid at 60 °C if a soluble vanadium(V) salt, n-Bu4NVO3 (1), is used as a catalyst. Corresponding ketones, alcohols and alkyl hydroperoxides are the main products. Methane, ethane, propane, cyclohexane, and other higher alkanes were substrates in the oxidations. The proposed mechanism involves...
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In: Advanced Synthesis & Catalysis, 2004, vol. 346, p. 317-332
This paper describes an investigation of the alkane oxidation with hydrogen peroxide in acetonitrile catalyzed by iron(III) perchlorate (1), iron(III) chloride (2), iron(III) acetate (3) and a binuclear iron(III) complex with 1,4,7-triazacyclononane (4). The corresponding alkyl hydroperoxides are the main products. Nevertheless in the kinetic study of cyclohexane...
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In: Journal of Materials Chemistry, 2002, vol. 12, p. 2653-2658
The synthesis and characterisation of 4-(3,4,5-trialkoxybenzoyloxy)pyridines (1a–e), and of their corresponding palladium(II), (2a–e), and platinum(II), (3a–e), complexes are described. The pyridine-based ligands are not mesomorphic, but upon complexation to PdCl2 or PtCl2, new hexacatenar mesogens are formed which show exclusively the hexagonal...
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In: Inorganica Chimica Acta, 2004, vol. 357, p. 475-484
A series of mono- and oligonuclear vanadium(V) and vanadium(IV) complexes containing various chelating N,O-, N3-, and O2-ligands have been prepared. The biphasic reaction of an aqueous solution of ammonium vanadate and a dichloromethane solution of hexamethylphosphoramide (hmpa) and pyrazine-2-carboxylic acid (pcaH) or pyrazine-2,5-dicarboxylic acid...
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Thèse de doctorat : Université de Neuchâtel : 2003 ; 1723.
Le but de ce travail de thèse, était, d'une part, d'étudier l'activité catalytique des nouveaux complexes de vanadium pour la fonctionnalisation oxydante d'alcanes (le méthane inclus) et, d'autre part, d'élargir l'étude aux complexes de fer dans l'esprit de modeler des enzymes monooxygénases. Deux polyoxomolybdates contenant des atomes de vanadium(V) ont été testés comme catalyseurs...
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