Library

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1979 (1979), S. 210-218 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Epoxides will Isocyanates, III-Study of 2-Oxazolidinones by Mass SpectrometryThe decomposition of 2-oxazolidinones in the mass spectrometer is initiated essentially by two steps: 1) Elimination of carbon dioxide by α-decomposition; 2) a-cleavage by liberation of carbon monoxide and of the corresponding aldehyde.-The 5-aryl-3-phenyl-2-oxazolidinones (e. g. 1) undergo both reactions at roughly equal rates. 5-Alkyl- or 5-alkylidene-3-phenyl-2-oxazolidi-nones (e. g.4, 5) preferentially eliminate carbon dioxide. The main degradation reaction of 4-aryl-3-phenyl-2-oxazolidinones (e. g. 2) is α-cleavage.
    Notes: Der Zerfall von 2-Oxazolidinonen im Massenspektrometer wird im wesentlichen durch zwei Primärschritte eingeleitet: 1) Abspaltung von Kohlendioxid durch p-Zerfall; 2) a-Spaltung unter Freisetzung von Kohlenmonoxid und dem entsprechenden Aldehyd.-Bei 5-Aryl-3-phenyl-2-oxazolidinonen (z. B. 1) vollziehen sich beide Reaktionen in gleichem Maße; 5-Alkyl- oder 5-Alkyliden-3-phenyl-2-oxazolidinone (z. B. 4, 5) spalten vorzugsweise Kohlendioxid ab. 4-Aryl-3-phenyl-2-oxazolidinone (z. B. 2) zeigen als Hauptreaktion die α-Spaltung.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...