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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 103 (1972), S. 234-238 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Reaktion der 2-alkylsubstit. Benzoxazole (1 a, 1 c), Benzothiazole (1 b, 1 d) und des Benzoselenazols (1 e) mit Malonsäuretrichlorphenylestern (2 a, b) führt in Abhängigkeit von der Art des Alkylrestes zu den kondensierten Hydroxypyridonen3 oder deren Hydroxypyronoderivaten4. In analoger Weise reagiert 2,5-Dimethyl-thiadiazol (5) mit2 a zu einem Pyrono-thiadiazolo-pyridon (7).
    Notes: Abstract The reaction of 2-substituted benzoxazoles (1 a, 1 c), benzothiazoles (1 b, 1 d) and benzoselenazole (1 e) with 2,4,6-trichlorophenyl malonates (2 a, b) gives—depending on the nature of the alkyl substituent—the fused hydroxypyridones3 or their hydroxypyrono derivatives. 2,5-Dimethyl-thiadiazol5 reacts in the same way with2 a yielding the pyrono-thiadiazolopyridon7.
    Type of Medium: Electronic Resource
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