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The collision‐induced fragmentations of deprotonated allyl alcohol and its monomethyl derivatives

The collision‐induced fragmentations of deprotonated allyl alcohol and its monomethyl derivatives Deprotonated allyl alcohol undergoes collision‐induced losses of H2, CH2O and C2H4 with minor hydrogen randomization occurring prior to or during these dissociations. A further fragmentation involves loss of methane: labelling studies (with CH2CHCD2O−) suggest that this loss is preceded by the equilibration CH2CHCD2O− ⇌ CD2CHCH2O−. The methyl homologues of allyl alcohol form isomeric C3H 5− ions: the charge reversal spectra of these isomers confirm that CH2CHCH 2−, CH2C̄CMe and HC̄CHMe are separate species, and also suggest that all three of the corresponding positive ions are formed on the charge‐reversal time‐scale. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Rapid Communications in Mass Spectrometry Wiley

The collision‐induced fragmentations of deprotonated allyl alcohol and its monomethyl derivatives

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References (16)

Publisher
Wiley
Copyright
Copyright © 1993 Wiley Subscription Services
ISSN
0951-4198
eISSN
1097-0231
DOI
10.1002/rcm.1290070506
Publisher site
See Article on Publisher Site

Abstract

Deprotonated allyl alcohol undergoes collision‐induced losses of H2, CH2O and C2H4 with minor hydrogen randomization occurring prior to or during these dissociations. A further fragmentation involves loss of methane: labelling studies (with CH2CHCD2O−) suggest that this loss is preceded by the equilibration CH2CHCD2O− ⇌ CD2CHCH2O−. The methyl homologues of allyl alcohol form isomeric C3H 5− ions: the charge reversal spectra of these isomers confirm that CH2CHCH 2−, CH2C̄CMe and HC̄CHMe are separate species, and also suggest that all three of the corresponding positive ions are formed on the charge‐reversal time‐scale.

Journal

Rapid Communications in Mass SpectrometryWiley

Published: Jan 1, 1993

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