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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: Reactions with Diazocarbonyl Compounds, XXXIII1). Reaction of o-Quinone Diazides with Ethyl p-Nitrophenylacetate and p-Nitrobenzylcyanideo-Quinone diazides react with p-NO2-C6H4-Ch2-CO2C2H5 and p-NO2-C6H4-CH2-CN to 2-hydroxyphenylhydrazones of the related keto compounds (table 1). The substances 1-9 are indicators. The cyano compound 8 shows solvatochromy reaching over the whole visible spectrum. The colour of the solution is related to the ability of the solvent to solvatise protons.
    Notes: o-Chinondiazide reagieren mit p-Nitrophenyl-essigsäureäthylester sowie mit p-Nitrobenzylcyanid zu 2-Hydroxy-arylhydrazonen der entsprechenden Keto-Verbindungen (Tab. 1). Die Substanzen 1-9 sind Indikatoren. Die Cyan-Verbindung 8 zeigt eine über das ganze sichtbare Spektrum gehende Solvatochromie, wobei ein Zusammenhang zwischen der Lösungsfarbe und der Fähigkeit des Lösungsmittels, Protonen zu solvatisieren, besteht.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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