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  • 1
    Electronic Resource
    Electronic Resource
    Catalytic behavior of a magnesium oxide supported polysilazane-ruthenium complex for the oxidation of indene with molecular oxygen to indanones (1996)
    Springer
    Reaction kinetics and catalysis letters 57 (1996), S. 147-152 
    Details
    ISSN: 1588-2837
    Keywords: MgO support ; polysilazane ruthenium (0) complex ; oxidation of indene to indanones ; molecular oxygen ; XPS analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A new magnesium oxide supported polysilazane ruthenium complex has been prepared and found to be capable of catalyzing the oxygenation of indene in 62.9% conversion to indanones without by-products under mild conditions, i.e. 1 atm oxygen and 80°C. The supported ruthenium complex was effective without need for a cocatalyst. Also, it can be reused several times without apparent loss of activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02076133
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  • 2
    Electronic Resource
    Electronic Resource
    Epoxidation of α-pinene with molecular oxygen catalyzed by poly(vinylbenzyl)acetylacetonate complexes of some metal ions (1996)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 7 (1996), S. 609-612 
    Details
    ISSN: 1042-7147
    Keywords: catalytic epoxidation ; α-pinene ; molecular oxygen ; poly(vinylbenzyl)acetylacetonate cobalt complex ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Poly(vinylbenzyl)acetylacetonate complex of cobalt is a very effective catalyst for the epoxidation of α-pinene under an atmospheric pressure of molecular oxygen at 25°C. With isobutyraldehyde as a reductant, the yield of the epoxidation of α-pinene amounts to 94.3% within 6 hr. The catalyst can be recycled at least eight times without apparent loss of activity.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Selective oxidation of tetrahydrofuran with molecular oxygen catalyzed by polyalumazane-platinum complexes (1996)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 7 (1996), S. 88-91 
    Details
    ISSN: 1042-7147
    Keywords: selective oxidation ; molecular oxygen ; active species Pt(0) ; polyalumazane-platinum complexes ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Tetrahydrofuran (THF) was oxidized selectively with molecular oxygen catalyzed by magnesium oxide-based polyalumazane-supported platinum complexes under mild conditions. The selective oxidation of C-H bond α to the oxygen atom of ether and the oxidative path to ester other than ring cleavage to carboxylic acid were controlled by carrying out the reaction at 60°C with nitroethane as solvent. The platinum loading and the reaction time greatly affected the yield of γ-butyrolactone whereas the selectivity always remained at 100%. 76.92% γ-butyrolactone was obtained with 0.2811 mmol platinum loading per gram support within 12 hr. The single product of the THF oxidation was confirmed by 1H-nuclear magnetic resonance. X-ray photoelectron spectroscopy data also confirmed the more recent report on the activation of the C-H bond by the null valent platinum from the viewpoint of supported platinum catalyst. The oxidation path was also suggested.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Epoxidation of styrene catalyzed by metal complexes of poly(vinylbenzyl)acetylacetonate (1996)
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 7 (1996), S. 729-731 
    Details
    ISSN: 1042-7147
    Keywords: epoxidation ; poly(vinylbenzyl)acetylacetonate ; cobalt complex ; molecular oxygen ; styrene ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The epoxidation of styrene to styrene oxide at higher than 96% yield has been achieved by the catalysis by poly-(vinylbenzyl)acetylacetonate complexes of cobalt(II) or manganese(II) in the presence of isobutyraldehyde under an atmospheric pressure of molecular oxygen at room temperature. The kind of aldehyde and aldehyde/styrene molar ratio greatly influenced the reaction. The catalyst could be recycled, but after recycling for five times, the yield of styrene oxide decreased from 96.0% to 84.6%.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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