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  • 1
    Electronic Resource
    Electronic Resource
    Intramolecular interactions II (1982)
    Springer
    Monatshefte für Chemie 113 (1982), S. 633-640 
    Details
    ISSN: 1434-4475
    Keywords: N,N-dimethylbarbituric acid ; 1H-NMR ; UV-VIS-spectra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Eine schwache intramolekulare Wechselwirkung zwischenN,N-Dimethylbarbitursäure und einem mit ihr über eine aliphatische Kette verbundenen aromatischen Ring wurde mittels UV-VIS- und NMR-Spektroskopie untersucht. Aus der Temperaturabhängigkeit der chemischen Verschiebung wurden die thermodynamischen Daten der Wechselwirkung bestimmt.
    Notes: Abstract A weak intramolecular interaction has been found between anN,N-dimethylbarbituric acid ring and an aromatic system connected by an aliphatic chain, and has been studied by UV-VIS and NMR spectroscopy. ΔH and ΔS values have been determined from the temperature dependence of chemical shifts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00800269
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    15N-NMR-studies on the neutralization reaction of arylidene dimethyl barbituric acids organicLewis acids 38 (1984)
    Springer
    Monatshefte für Chemie 115 (1984), S. 375-381 
    Details
    ISSN: 1434-4475
    Keywords: Benzylidene N,N′-dimethyl barbituric acid ; Organic Lewis acids ; 15N-NMR-spectroscopy ; Piperidine ; Morpholine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Die15N-NMR-Spektren von Benzyliden-N,N′-dimethylbarbitursäure undp-Chlorbenzyliden-N,N′-dimethylbarbitursäure und deren Additionsprodukte mit Piperidin und Morpholin wurden gemessen und im Hinblick auf dieLewissäureaktivität dieser Substanzklasse interpretiert.
    Notes: Abstract The15N-NMR-spectra of benzylideneN,N′-dimethyl barbituric acid andp-chloro-benzylideneN,N′-dimethyl barbituric acid have been measured together with their addition products with piperidine and morpholine. TheLewis Acid reactivity is discussed in terms of15N-chemical shifts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00798808
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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