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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 2 (1969), S. 121-134 
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: As a result of high resolution mass measurements, calculation of metastable ions, and investigation of specifically deuterated compounds the fragmentation is discussed of some α-substituted N-methyl benzylamides containing different N-acyl groups. α-Cleavage leads to the formation of N-methyl α-acylamino carbon ions which show skeletal rearrangement. The intensity of the rearranged ions depends on the structure of the N-acyl group. Migration of the α-methyl group is observed in the mass spectra of N-acetyl and N-p-Cl-benzoyl N-methyl-α-phenylethylamide.
    Notes: Der massenspektrometrische Zerfall einiger α-substituierter N-Methylbenzylamide mit verschiedenen N-Acylgruppen wird anhand der Ergebnisse aus hochauflösender Massenbestimmung, Berechnung der metastabilen Ionen Untersuchung spezifisch deuterierter Verbindungen diskutitert. Dabei wird die Strukturumlagerung der durch α-Spaltung entstandenen N-Methyl-α-acylaminocarboniu-Ionen nachgewiesen. Sie ist von der Art der N-Acylgruppe abhängig. In den Massenspektren von N-Acetyl-bzw. N-p-Cl-Benzoyl-methyl-α-phenyläthylamid wird die Wanderung der α-Methylgruppen beobachtet.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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