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Main Title: Zur intermediären Existenz von Ethylenfluoronium-Ionen in der Gasphase
Translated Title: On the Intermediary Existence of Gaseous Ethylen Fluoronium Ions
Author(s): Ciommer, Bernhard
Schwarz, Helmut
Type: Article
Language Code: de
Abstract: The long-sought ethylen fluoronium ion (2) is generated as an intermediate in the dissociative ionization of 1-fluoro-2-(p-methyl)phenoxy ethane (4). However, prior to collisionally induced dissociation 2 undergoes ring-opening, associated with hydrogen migration, to form 1-fluoroethyl cation (3). Other decomposition pathways of the molecular ions of 4 involve (i) direct formation of 3 via a combination of C-O-cleavage (loss of ArO -) and [1,2] hydrogen migration (18%) and (ii) complete positional loss of the a-and β-methylene hydrogen atoms (34%). The remaining 48% of the molecular ions of 4 dissociate via anchimeric assistance of the fluorine in the elimination of ArO·, thus giving rise to the formation of 2.
Issue Date: 1983
Date Available: 2-Jan-2019
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): fluoronium ions
neighbouring group participation
gaseous ions
collisional activation
mass spectrometry
Journal Title: Zeitschrift für Naturforschung B
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 38
Issue: 5
Publisher DOI: 10.1515/znb-1983-0519
Page Start: 635
Page End: 638
EISSN: 1865-7117
ISSN: 0932-0776
Appears in Collections:FG Organische Chemie » Publications

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