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  • 1
    Electronic Resource
    Electronic Resource
    Elucidation of the constitution of a heterocyclic rearrangement product by means of17O-NMR-spectroscopy (1993)
    Springer
    Monatshefte für Chemie 124 (1993), S. 1195-1200 
    Details
    ISSN: 1434-4475
    Keywords: Spiro compounds ; Heterocycles ; Rearrangement ; 17O-NMR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Im Verlauf einer versuchten Eliminierungstreaktion wurde ausgehend von einem Aminoalkoholderivat eines Isothiochromansystems unerwarteterweise ein Benzo[c]thiophen-derivat isolert. Die Konstitution des Umlagerungsproduktes wurde eindeutig durch17O-NMR-Spektroskopie bestätigt.
    Notes: Summary In the course of an attempted elimination reaction starting from an isothiochromane derivative substituted with an amino-alcohol moiety, a benzo[c]thiophene derivative formed via a rearrangement reaction was isolated unexpectedly. Its constitution was confirmed unambiguously via17O-NMR-spectroscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00810028
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  • 2
    Electronic Resource
    Electronic Resource
    1H and 13C NMR studies of E/Z 2-hydroxyindolenines (1993)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 31 (1993), S. 960-962 
    Details
    ISSN: 0749-1581
    Keywords: E/Z 2-hydroxyindolenines ; 1H-NMR ; 13C-NMR ; Heterocycles ; Substituent effects ; Conformation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The 1H NMR spectra of E/Z 2-hydroxyindolenines are reported in both CDCl3 and DMSO-d6 solvents. The data suggest a preferred conformation of the heterocyclic ring, which is slightly distorted from planarity, in agreement with the x-ray crystallographic data of one of the isomers. The 13C NMR spectra for the Z-hydroxyindolenines are also described. Substituent effects on E/Z isomerism about the exocyclic C=C bond are discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260311015
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    Paper (German National Licenses)
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