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  • 1975-1979  (1)
  • 1977  (1)
  • Chemistry  (1)
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  • 1975-1979  (1)
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  • 1
    ISSN: 0030-4921
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The signals of protons bonded to carbon atoms in α position to the pyridinic nitrogen atom in thiazole and in γ position in thiazolo[2,3-e]tetrazole are broadened. This broadening disappears on irradiation at the 14N resonance frequency, on cooling, and in an acidic medium (in which the protonation sites in both molecules can be determined).
    Notes: Les signaux des protons fixés sur un atome de carbone en α d'un azote pyridinique en série thiazole et en γ en série thiazolo[2,3-e]tétrazolique sont élargis à cause de la présence d'atomes d'azote 14N; cet élargissement disparait par irradiation, par refroidissement et en milieu acide (dans ce cas, cela permet la détermination du site de protonation des deux molécules).
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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