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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 determination of the stereochemistry of a series of exo/endo-isomeric dihydro- and tetrahydro-dicyclopentadiene-9.10-diols (exo/exo or endo/endo), using Eu(fod)3 for separation of the signals in their 1H n.m.r. spectra, is discussed in detail. The paramagnetic shift values ΔEu determined for half-molar ratios Eu(fod)3/diol allow an unambiguous stereochemical assignment of the diols with regard to exo/endo isomerism. The ΔEu quantities are correlated with the distance Hi…O-atom (Ri).
    Notes: Die Bestimmung der Stereochemie einer Reihe exo/endo-isomerer 9.10-Dihydro- bzw. Tetrahydrodicyclopentadien-9.10-diole (exo/exo bzw. endo/endo) unter Verwendung von Eu(fod)3 zur Auftrennung ihrer 1H-NMR-Spektren wird beschrieben. Die für halbmolares Verhältnis Eu(fod)3/Diol bestimmten Verschiebungswerte ΔEu gestatten dabei eine eindeutige stereochemische Zuordnung der Verbindungen. Die ΔEu-Werte werden mit dem Abstand Hi…O-Atom (Ri) korreliert.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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