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  • Inorganic Chemistry  (1)
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    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Silicon-Sulphur Compounds. 48. Investigations on Catalytic Activity of Pyridine Derivatives and N-containing Heterocycles on the Alcoholysis of the Si—S Bond of TrialkoxysilanethiolsThe effectiveness of pyridine derivatives and N-containing heterocycles on the ethanolysis of trialkoxysilanethiols has been investigated by kinetic measurements. Imidazol, 2-methylimidazol and 4-dimethylaminopyridine proved to be especially efficient. The addition of triethylamine reduces the rates of catalysed reactions significantly. The results were discussed in meaning of a nucleophilic catalysis.
    Notes: Die Wirksamkeit von Pyridin-Derivaten und N-haltigen Heterocyclen auf die Ethanolyse der Si—S-Bindung von Trialkoxysilanthiolen wurde durch kinetische Messungen untersucht. Als besonders wirksam erwiesen sich Imidazol, 2-Methylimidazol und 4-Dimethylaminopyridin. Die Zugabe von Triethylamin setzt die Reaktionsgeschwindigkeit von katalysierten Umsetzungen bedeutend herab. Die Ergebnisse werden im Sinne einer nukleophilen Katalyse diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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