Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Patrick Geneste"'
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 97:42-46
The nature of hydrogen transfer occurring during the slow step of the oxidation reaction of the alcohol using chromic acid has been studied by measuring the secondary deuterium isotope effects. The results obtained with cyclohexanol (kH/kD = 1.25); c
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 94:131-134
The comparison of the rates of chromic oxydation of 2-adamantanol, bicyclo[3.3.1]nonan-9-ol and cis and trans 4-tert-butylcyclohexanols shows that the transition state of this reaction is product-like. It appears that 1,3 diaxial interactions increas
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 95:116-120
An important step in a new synthesis of phenylcyclohexylamines, the conversion of 1-phenylcyclohexanols into the corresponding azides, is studied in some detail. The slow epimerization of the azides allows isolation of both the kinetic and the thermo
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 93:831-838
The modelisation of an HDS site from the MoS2 structure is undertaken in order to understand the desulfurisation of thiophene. Depending on the number of coordinative unsaturation degrees (one, two and three anionic vacancies) and on their stoechiome
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 93:653-658
The rate constants of hydrodesulfurization of phenothiazine, phenoxathiine thianthrene and thioxanthene on sulfided NiO-MoO3/γ-Al2O3 catalyst, at 340°C under 70 bar H2, are similar to one another and about 10-fold higher than that of dibenzothiophe
Autor:
J.C. Duchet, Patrick Geneste, J. L. Olive, L. Bekakra, Jean Grimblot, Claude Moreau, M.J. Tilliette
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 100:841-847
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 100:865-872
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 234:59-62
To understand origin of the undesirable well-known coloration of triethanolamine by compounds at trace levels, a model of insaturated oligomers is proposed. The hydrogenation in the presence of various supported metal catalysts is an attractive proce
Autor:
Annie Finiels, François Fajula, Christine Bouquet–Somrani, Patrick Geneste, Patrick Graffin, J.L. Olivé
Publikováno v:
New Journal of Chemistry. 24:999-1002
The photocatalytic degradation of Diuron in organic and semi-aqueous media is compared. The rates of disappearence fit Langmuir–Hinshelwood kinetics and the parameters k and K have been determined. A main intermediate was detected in all cases and