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  • 1
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Pyrrolpigmente, 50. Mitt. (1983)
    Springer
    Monatshefte für Chemie 114 (1983), S. 983-998 
    Details
    ISSN: 1434-4475
    Keywords: 2,3-Dihydrobilatrienes ; Lactam-lactim tautomerism ; Phytochrome model ; Protonation equilibria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Using fixed tautomeric structures of 3,4-dihydropyrromethenones and 2,3-dihydrobilatrienes-abc (N- and O-alkylation) a prevalence of the lactam and bis-lactam form over lactimes by several orders of magnitude could be deduced. Although there are complications arising from side reactions of the pyrrolidinone fragment, protonation equilibria provided valuable clues for this result which is nicely complemented by NMR-, IR and UV-VIS data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00799958
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