Unimolecular Gas-Phase Thermolysis of Ethyl Acetate

Helge Egsgaard, Lars Carlsen

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    Abstract

    The unimolecular gas-phase thermolysis of ethyl acetate has been investigated by the Flash-Vacuum-Thermolysis/Field-Ionization Mass Spectrometry (FVT/FI-MS) method in combination with Collision Activation (CA) mass spectrometry at 1253K. Two predominant reactions are observed: elimination of ethylene affording acetic acid, the latter to some extent consecutively yielding ketene, and intramolecular oxygen to oxygen ethyl group migration. Additionally minor amounts of acetaldehyde is formed. The mechanistic aspects are discussed based on 18O and 18O/ 13C labelling.
    Original languageEnglish
    JournalInternational Journal of Mass Spectrometry and Ion Physics
    Volume47
    Pages (from-to)55-58
    ISSN0020-7381
    DOIs
    Publication statusPublished - 1983

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