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  • 1
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 11 (1979), S. 365-370 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Изучены каталитические свойства ацетилацетонатов ванадя (IV), хрома (III), железа (II), и (III), кобальта (III) и никеля (II) в реакции гидроперекиси α-фенилэтила в хлорбензоле. Каталитическая актиеность убываег в ряду $$V 〉 Fe(III) \sim Co 〉 Fe(II) 〉 Ni 〉 Cr(III)$$ Каталитическая активность ацетилацетонатов хрома и ванадия существенно изменяется под воздействием кислорода, окиси и двуокиси утлерода и аммиака. Установлено, тормозящее действие кислорода на процесс катализированного разложения гидроперекиси в хлорбензоле, что свидетельствует о возможной активации кислорода гомогенным катализатором и в проессах жидкофазного окисления углеводородов.
    Notes: Abstract The catalytic effect of Co(acac)2, Cr(acac)3, Fe(acac)3, Fe(acac)2, Co(acac)3 and Ni(acac)2 on the decomposition of α-phenylethyl-hydroperoxide in chlorobenzene solvent has been studied. The catalytic activity was found to decrease in the following order: $$V 〉 Fe(III) 〉 Co 〉 Fe(II) 〉 Ni 〉 Cr$$ The catalytic activity of chromium and vanadium-acetlyacetonate was found to change considerably in the presence of oxygen, carbon dioxide, carbon monoxide and ammonia. It has been established that the catalytic decomposition of α-phenylethyl-hydroperoxide in chlorobenzene is inhibited by oxygen. This observation supports the assumption that during hydrocarbon oxidation processes the homogeneous catalyst activates oxygen.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 12 (1979), S. 57-62 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Изучена кинетика каталитического эпоксидирования пропилена гидроперекисью этилбензола. Сама реакция эпоксидирования — это молекулярное взаимодействие между пропиленом и комплексом катализатора с гидроперекисью. Ряд побочных продуктов образуется в радикальных реакциях. Данный механизм описывает кинетику как эпоксидирования так и каталитического разложения гидроперекиси.
    Notes: Abstract The mechanism of the catalytic epoxidation of propylene with α-phenylethyl hydroperoxide has been investigated. The epoxidation step is a molecular interaction between propylene and a complex formed from hydroperoxide and catalyst, while part of side products is formed in free radical reactions. This mechanism is valid for the kinetics of both epoxidation and catalytic decomposition of hydroperoxide.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Бьло найдено, что в отсутствии кислорода и света насыщенные углеводороды самопроизвольно реагируют с нитрозобензолами. Для интерпретации этого общего явления было предположено новое направление реакции. В свете полученных данных следует обращатя особое внимание при интерпретации экспериментальных результатов в случае применения нитрозобензолов в качестве спиновых ловушек, ингибиторов, а также для синтетических целей при проведении опытов в насыщенных углеводродах как растворителях, которые, по предположению являются инертными.
    Notes: Abstract We have found that nitrosobenzenes spontaneously react with saturated hydrocarbons in the absence of oxygen and light. For interpretation of this general phenomenon a new reaction pathway has been assumed. In light of these results special care should be taken when applying nitrosobenzenes for inhibition and spin trapping as well as organic synthesis in saturated organic solvents, which are supposed to be inert.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 34 (1987), S. 283-288 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Нитрозосоединения, широко известные как спиновые ловушки, еще не были использованы в радикальных реакциях с участием хлоранила. Показано, что такие ловушки как нитрозодурол и 2,6-дихлорнитрозобензол, реагируют с радикалами, образующимися при взаимодействии хлоранила с дуролом, давая, при этом стабильные спиновые аддукты. Нитрозодурол, играя роль электронодонора, вступает в реакцию с хлоранилом и одновременно действует в качестве спиновой ловушки, захватывая свободные радикалы, образующиеся в данной реакции.
    Notes: Abstract Nitroso compounds, well known as spin traps, have not been applied for scavenging free radicals formed in reactions with the contribution of chloranil, so far. In our studies we show that spin traps such as nitrosodurene (ND), 2,6-dichloronitrosobenzene (Cl2NB) react with radicals formed in the reaction between chloranil and durene, yielding stable spin adducts.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Исследовано влияние уф и видимого света на каталитическую реакцию в системах, содержащих спновые ловущкм типа гексакарбоиилов Cr, Mo и W, нитрона и нитрозосоединений в четыреххлористом углероде. В этих условиях реакции уловлены нетолько радикал CCl 3 . , но также диалкильные, дифенильные и ацилфенильные азотнокислые радикалы.
    Notes: Abstract The effect of UV and visible light on the catalytic reaction has been investigated in the systems containing Cr, Mo and W hexacarbonyls, nitrone and nitroso type of spin-traps in carbon tetrachloride. Under these reaction conditions not only radical CCl 3 . but also dialkyl-, diphenyl- and acyl-phenylnitroxides have been trapped.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 38 (1989), S. 115-118 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Данные ИК-спектроскопии и элементарного анализа свидетельствуют о том, что заглавное соединение, вероятно, имеет структуру MoOL2ORH или MoOL2OORH. Эти соединения образуются непосредственно из радикала в координационной сфере катализатора (L=лиганд).
    Notes: Abstract IR and elemental analysis data indicate that the probable structure of the title compound is MoOL2ORH or MoOL2OORH which is formed directly from the radical within the coordination sphere of the catalyst (L=ligand).
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 110 (1937), S. 435-437 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 13 (1981), S. 1191-1202 
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A general mechanism was proposed for the title reactions which describes the kinetics of hydroperoxide decomposition as well as product accumulation throughout the whole reaction period in an analytical form. The following catalytic steps were included: where the deactivation takes place as a result of radical-catalyst interaction inside the cage. The resulting equations give satisfactory description of the literature data in the case of various catalysts and hydroperoxides.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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