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  • 1
    ISSN: 1434-4475
    Keywords: Keywords. Triazolium salt; Ring closure; Regiospecificity ; Ring opening; Indole synthesis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung.  Die oxidierende Cyclisierung von 3-Isochinolylketonhydrazonen ergab die neuen tricyclischen [1,2,3]Triazolo[1,5-b]isochinoliniumsalze. Die Reaktivität des Ringsystems gegenüber Nukleophilen erwies sich regioselektiv. Bei Reaktion mit sekundären Aminen trat Öffnung des Pyridinringes ein; die Reaktion mit Natriumborhydrid führte zu partiell reduzierten Derivaten der Ausgangsverbindung.
    Notes: Summary.  Oxidative cyclization of 3-isoquinolyl ketone hydrazones afforded the novel tricyclic heteroaromatic [1,2,3]triazolo[1,5-b]isoquinolinium salts. The reactivity of the ring system towards nucleophiles proved to be regioselective. Secondary amines induced ring opening of the pyridine moiety, forming a triazolyl substituted benzaldehyde derivative; sodium borohydride afforded partially reduced derivatives of the parent compound.
    Type of Medium: Electronic Resource
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