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Title: On the loss of SH center dot from the molecular ions of S-alkyl thioformates: Experimental evidence for the generation of hydroxycarbenium ions
Authors: Lahem, D ×
Flammang, R
VanHaverbeke, Y
Nguyen, Minh Tho #
Issue Date: 1997
Publisher: JOHN WILEY & SONS LTD
Series Title: Rapid communications in mass spectrometry vol:11 issue:4 pages:373-377
Conference: date:UNIV MONS,ORGAN CHEM LAB,B-7000 MONS,BELGIUM; UNIV LOUVAIN,DEPT CHEM,B-3001 LOUVAIN,BELGIUM
Abstract: A series of S-alkyl thioformates, HC(O)SR, has been synthesized by formylation of alkane thiols and their behaviour upon electron impact has been investigated by using tandem mass spectrometry methodologies. When R > CH3, a prominent loss of a SH. radical is observed in the ion source as well as in the field-free regions. This reaction, which requires an important preliminary rearrangement of the molecular ion, gives hydroxycarbenium ions as evidenced by collisional-activation spectra and consecutive collisional-activation experiments. A mechanism involving ionized thietane intermediates is proposed. (C) 1997 by John Wiley & Sons, Ltd.
ISSN: 0951-4198
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Quantum Chemistry and Physical Chemistry Section
× corresponding author
# (joint) last author

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