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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 723 (1969), S. 41-46 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Tertiary and Quaternary Salts of Hexahydro-pyrimidinesThe mono- and bis-tertiary salts 7, 11, 12 may be obtained by reaction of 1.3-dialkylhexahydro-pyrimidines and hydrogen chloride in suitable solvents. - The mono-quaternary salts 8-10 are formed from 1.3-dialkyl-hexahydro-pyrimidines and alkyl halides in ether. The bis-quaternary salts 5, 6 and 13-17 result by alkylation of 1.3-dialkyl-hexahydro-pyrimidines with methyl bromide, methyl iodide or trialkyloxonium fluoroborates in polar aprotic solvents or by reaction of α-halogen amines with γ-chloropropyl amines.
    Notes: Aus 1.3-Dialkyl-hexahydro-pyrimidinen und Chlorwasserstoff sind in geeigneten Lösungsmitteln die mono-sowie bis-tertiären Salze 7, 11, 12 zu gewinnen. - Die monoquartären Salze 8-10 entstehen aus 1.3-Dialkyl-hexahydro-pyrimidinen und Alkylhalogeniden in Äther. Die bis-quartären Salze 5, 6 und 13-17 sind durch Alkylierung von 1.3-Dialkyl-hexahydropyrimidinen mit Methylbromid oder -jodid sowie Trialkyl-oxoniumfluoroboraten in polaren, aprotischen Lösungsmitteln oder durch Umsetzung α-halogenierter Amine mit γ-Chlorpropylaminen zugänglich.
    Type of Medium: Electronic Resource
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