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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 2143-2155 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Enehydrazines, 4. The Reaction of Dimedone with HydrazonesIn the presence of p-toluenesulfonic acid dimedone reacts with araliphatic or aromatic hydrazones to form enehydrazones such as 4, 6, 8, and 10, which can be hydrogenated to the enehydrazines 12, 13, and 15. Under mild acid catalysis dimedone reacts with hydrazones (including aliphatic ones) to yield tetrahydroindazolinones 16 to 19, and 22 via hexahydroindazolinones such as 25 to 28.
    Notes: Dimedon bildet bei Gegenwart von p-Toluolsulfonsäure mit araliphatischen oder aromatischen Hydrazonen Enhydrazone wie 4, 6, 8 und 10, die zu den Enhydrazinen 12, 13 und 15 hydriert werden können. Bei milder Säurekatalyse entstehen aus Dimedon und (auch aliphatischen) Hydrazonen über die Stufe der Hexahydro-indazolinone-(4) wie 25-28 die Tetrahydro-indazolinone 16-19 und 22.
    Type of Medium: Electronic Resource
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