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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1979 (1979), S. 503-521 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Oxidative Amination of 1′,4′-Dihydroxy-2′-acetonaphthoneUnder conditions of oxidative amination 1′,4′-dihydroxy-2′-acetonaphthone (1) and arylamines 3 react to yield arylaminonaphthoquinones 4 (C-N-bond formation), aminoarylquinones 8, phenanthridinequinones 9 (C—C-bond formation) and quinones 10 (C—C- and C—N-bond formation). Intermediates of the multistep reaction are isolated and characterised. The results are compared with those of the reaction of 2-acetyl-1,4-naphthoquinone (2) with the arylamines 3.
    Notes: 1′,4′-Dihydroxy-2′-acetonaphthon (1) reagiert unter den Bedingungen der oxidativen Aminierung mit Arylaminen 3 zu Arylaminonaphthochinonen 4 (C- N-Verknüpfung), Aminoarylchinonen 8, Phenanthridinchinonen 9 (C-C-Verknüpfung) und den Chinonen 10 (C-N- und C-C-Verknüpfung). Zwischenprodukte der mehrstufigen Reaktion wurden isoliert und charakterisiert. Die Ergebnisse werden mit denjenigen der Reaktion von 2-Acetyl-1,4-naphthochinon (2) mit Arylaminen 3 verglichen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1982 (1982), S. 99-111 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of PhenylazohydroquinonesPhenylazohydroquinones 3, 4 (and not hydrazinoquinones) have been synthesized from 2,5-bis(arylamino)-1,4-benzoquinone-3-carboxylic acids 1 and hydrazines 2; the structure of 3 and 4 was confirmed by spectroscopic (IR, UV. 1H-NMR, and 13C-NMR) data.
    Notes: Aus 2,5-Bis(arylamino)-1,4-benzochinon-3-carbonsäuren 1 und Arylhydrazinen 2 entstehen substituierte Phenylazohydrochinone 3, 4 (nicht Hydrazinochinone), deren Struktur durch spektroskopische (IR-, UV-, 1H-NMR- und 13C-NMR-)Daten gesichert wurde.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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