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  • 1
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dihydropyridines, IV.  -  Condensation of Aldehydes with Enediaminocarbonyl CompoundsReaction of aldehydes 1 with double molar quantities of amidinoacetic esters 5 leads to the 2,6-diaminodihydropyridine-3,5-dicarboxylates 8. 2-Amino-6-dialkylamino-4,5-dihydropyridines 12 are obtained by condensation of 1 with 3-amino-3-dialkylaminoacrylic esters 11. Pyridones 17 with bridgehead nitrogen are formed by condensation of 1 with bridged enediaminocarbonyl compounds 15.
    Notes: Die Kondensation von Aldehyden 1 mit Amidinoessigsäureestern 5 im Molverhältnis 1:2 führt zu 2,6-Diaminodihydropyridin-3,5-dicarbonsäureestern 8. 3-Amino-3-dialkylaminoacrylsäureester 11 liefern mit 1 unter analogen Bedingungen die 2-Amino-6-dialkylamino-4,5-dihydropyridine 12. Dihydropyridone 17 mit Brückenkopf-N-Atom werden durch Kondensation von 1 mit den N,N′-verbrückten Endiaminocarbonsäureestern 15 erhalten.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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