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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 104 (1971), S. 3475-3485 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Orthoamides, XIX. Synthesis and Reactions of Substituted Amide AcetalsCarboxamides (1) are alkylated by triethyloxoniumtetrafluoroborate to give the corresponding carbonium tetrafluoroborates (2). As a rule, 2 reacting with sodium ethylate at 0° affords the amide acetals (3). The reaction of 3 with nucleophiles at 80° results in the elimination of ethanol and formation of the aminomethylene compounds.
    Notes: Carbonsäureamide (1) werden mit Triäthyloxonium-tetrafluoroborat zu den entsprechenden Carbonium-tetrafluoroboraten (2) alkyliert, die sich mit Natriumäthylat bei 0° in der Regel zu den Amidacetalen (3) umsetzen lassen. Aus 3 und nukleophilen Substanzen entstehen bei 80° unter Äthanolabspaltung die entsprechenden Aminomethylen-Verbindungen.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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