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  • 1975-1979  (1)
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    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1978 (1978), S. 1390-1398 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Azepinoindoles, III.  -  Cyclization of N-(2-Indolylcarbonyl)-β-amino Acids to Azepino[3,4-b]indoledionesN-(2-Indolylcarbonyl)-β-amino acids 2 cyclize with polyphosphoric acid, forming azepino[3,4-b]indolediones 3. N-(2-Indolylcarbonyl)-α-amino acids 4 are cyclized to the corresponding pyrido[3,4-b]indolediones 5.
    Notes: Die Behandlung den N-(2-Indolylcarbonyl)-β-aminosäuren 2 mit Polyphosphorsäure führt in guten Ausbeuten zu den Azepino[3,4-b]indoldionen 3. Die N-(2-Indolylcarbonyl)-α-aminosäuren 4 cyclisieren zu den entsprechenden Pyrido[3,4-b]indoldionen 5.
    Type of Medium: Electronic Resource
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