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  • Carboxylic acids  (2)
  • Analyse von binären Flüssigkeitsgemischen, Best. von Wasser in Organ. Lösungsmitteln  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Balanced Decarboxylation of Aromatic Polyacids - A One-Step Synthesis of Perylene-3,4-dicarboxylic Anhydride (1997)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1997 (1997), S. 467-468 
    Details
    ISSN: 0947-3440
    Keywords: Decarboxylation ; Carboxylic acids ; Fluorescence spectroscopy ; Perylenes ; Heterocycles ; Dyes ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Perylene-3,4-dicarboxylic anhydride (3) is prepared from technical grade perylene-3,4:9,10-tetracarboxylic anhydride (1) in 25% yield by a partial decarboxylation reaction using noncondensing amines. Perylene-3-carboxylic acid (4) and perylene-3,4-dicarboxylic imide (5) are prepared in the same way in yields of 24% and 76%, respectively, by a variation of the reaction conditions.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.199719970305
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ein neues, unkompliziertes Verfahren zur Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische (1981)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 308 (1981), S. 441-444 
    Details
    ISSN: 1618-2650
    Keywords: Analyse von binären Flüssigkeitsgemischen, Best. von Wasser in Organ. Lösungsmitteln ; Spektralphotometrie ; solvatochrome Farbstoffe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein neues Verfahren zur Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische mit Hilfe solvatochromer Farbstoffe wird beschrieben. Die Analyse erfolgt durch einfache UV/VIS-Absorptionsmessung und ist unter Verwendung einer Zwei-Parameter-Gleichung ein exakter Schnelltest.
    Notes: Summary A new procedure for the determination of the composition of binary liquid mixtures by the use of solvatochromic dyes is described. The analysis, which consists of a simple UV/VIS absorption measurement in combination with a two parameter equation, provides an exact and rapid test.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00466081
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The Synthesis of Perylenebisimide Monocarboxylic Acids (1998)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1998 (1998), S. 847-851 
    Details
    ISSN: 1434-193X
    Keywords: Fluorescent dyes ; Perylenes ; Heterocycles ; Carboxylic acids ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The synthesis and properties of perylene-bisimides 4 with one carboxylic acid anchor group are described. The properties of 4 are strongly influenced by the spacer between the carboxylic acid group and the imide moeity. Dyes with aliphatic (4d-4g) and aromatic (4a-4c) spacers have been prepared.
    Type of Medium: Electronic Resource
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    Paper (German National Licenses)
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