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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 1 (1968), S. 323-329 
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: It is shown that in porphin derivatives the McLafferty rearrangement occurs preferentially in even electron systems, in fact with high relative abundance starting from M2+, but less favorably in ions formed by elimination of a radical. Starting from this observation the formulation of a general scheme for the McLafferty rearrangement is attempted.
    Notes: Es wird gezeigt, daß in Porphin-Derivaten die McLafferty-Umlagerung bevorzugt in geradelektronischen Systemen abläuft. und zwar mit großer relative Häufigkeit ausgehend von M2+, jedoch weniger begünstigt in Ionen, die durch Radikalabspaltung entstanden sind. Von dieser Beobachtung ausgehend wird ein allgemeines Schema für die McLafferty-Umlagerung vorgeschlagen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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