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A. V. Sulimov A. V. Ovcharova A. A. Ovcharov V. R. Flid S. V. Leont’eva L. G. Bruk Zh. Yu. Pastukhova M. R. Flid 《Russian Chemical Bulletin》2016,65(12):2845-2849
Main features of liquid-phase epoxidation of propylene, allyl chloride, and allyl alcohol by aqueous solution of hydrogen peroxide in the presence of extruded titanium silicalite in methanol medium have been investigated. The effects of the solvent, the initial ratio of the organic substrate: hydrogen peroxide, and temperature on the yield of main products and by-products were elucidated. Based on the obtained features the conditions for the synthesis of propylene oxide, epichlorohydrin, and glycidol in a laboratory continuous set-up were established. 相似文献
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S. N. Gorodskii E. S. Kalenova L. G. Bruk O. N. Temkin 《Russian Chemical Bulletin》2003,52(7):1534-1543
The oxidative carbonylation of alkynes in the oscillation mode was studied. The influence of the nature of substrates, alkynes and alcohols, on the pattern of oscillations was considered. The role of oxidants, I2 and H2O2, in this process was demonstrated. The reaction network of the process was formulated, and four hypothetical mechanisms were selected. 相似文献
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O. N. Temkin L. G. Bruk D. S. Zakharova K. Yu. Odintsov E. A. Katsman I. V. Petrov O. Yu. Istomina 《Kinetics and Catalysis》2010,51(5):691-703
A kinetic study of cyclohexene oxidation by p-quinones in water-acetonitrile solutions of cationic Pd(II) complexes has been carried out for the first time. The observed
kinetic regularities (dependence of the initial rate on the HClO4 and p-benzoquinone concentrations) and the shape of the kinetic curves differ radically from those for the chloride systems. The
unsteady-state process can be described only under the assumption that complexes of reduced palladium species with quinones
are catalytically active forms. The role of solvated palladiumcarbenium ions in particular steps of the mechanism is discussed. 相似文献
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L. G. Bruk O. N. Temkin A. S. Abdullaeva E. A. Timashova E. Yu. Bukina K. Yu. Odintsov I. V. Oshanina 《Kinetics and Catalysis》2010,51(5):678-690
PdX2-organic solvent-water solutions, where X = halide (preferably bromide or iodide) and the organic solvent is 1,4-dioxane or
tetrahydrofuran, are suggested as catalytic systems for CO oxidation. A number of coupled processes take place in these systems.
The kinetics and mechanism of CO oxidation by oxygen in the PdI2-LiI-1,4-dioxane-water system are reported. Cyclohexene hydrocarboxylation into cyclohexanecarboxylic acid can be carried
out as part of the coupled process occurring in the PdBr2-tetrahydrofuran-water system. 相似文献
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