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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 109 (1976), S. 1346-1352 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Electrochemical Syntheses, IV: The Electrosynthesis of 1,3,5-Triazines from AldehydesThe electrochemical oxidation of acetaldehyde in methanol/ammonia yields 2,4,6-trimethyl-1,3,5-triazin (3) in at least 20% yield, whereas benzaldehyde gives only a 1% yield of the triphenyl derivative 4. No s-triazine (5) is obtained from formalin. In addition to the triazines 1-3 the mixed triazines 6-8 are obtained by electrolyzing an acetaldehyde/isobutyraldehyde mixture. The reason for the difference in the yields of the triazines from aldehydes is to be sought in the equilibrium concentration fo the precursing amino-methoxy adduct RCH(NH2)OCH3.
    Notes: Die elektrochemische Oxidation von Acetaldehyd in Methanol/Ammoniak liefert 2,4,6-Trimethyl-1,3,5-triazin (3) in 20% Ausbeute, die von Benzaldehyd jedoch nur 1% des Triphenylderivates 4; aus Formalin konnte kein s-Triazin (5) erhalten werden. Mit einem Acetaldehyd/Isobutyraldehyd-Gemisch konnten neben 1,2 und 3 auch die gemischten Triazine 6-8 erhalten werden. Als Ursache für den unterschiedlichen Erfolg dieser Triazinsynthese wird die Gleichgewichtskonzentration des Aminomethoxy-Aldehydadduktes RCH(NH2)OCH3 angesehen.
    Type of Medium: Electronic Resource
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