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  • 1
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A One-step Synthesis of 2,4-Bis(secalkylamino)-6-halo-3-pyridinecarbonitrilesThe title compounds, e. g. 2a-c or 7, are obtained by reaction of malononitrile (1) with sec-alkyl halides/aluminium chloride (except the alkyl fluorides) at room temperature. From these the corresponding 2,4-bis(sec-alkylamino) pyridines may be conveniently prepared. With hydrogen bromide, 1 or its “dimer” 10 (R = H) 2,4-diamino-6-bromo-5-pyridinecarbonitrile (17) is formed.
    Notes: Malonsäuredinitril (1) liefert mit sec-Alkylhalogniden/Aluminiumchlorid (mit Ausnahme der Alkylfluoride) bei Raumtemperatur die Titelverbindungen (z. B. 2a-c Oder 7. Diese lassen sich glatt in die entsprechenden 2,4-Bis(sec-alkylamino)pyridine überführen. 1 oder das aus 2 Molekülen 1 gebildete 10b mit R = H geben mit Bromwasserstoff 2,4-Diamino-6-brom-5-pyridincarbonitril (17).
    Type of Medium: Electronic Resource
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