UNSPECIFIED (1997) Mechanistic aspects of high-energy collision-induced dissociation proximate to the charge in saturated fatty acid N-butyl esters cationized with lithium. Evidence for hydrogen radical removal. In: 15th Informal Meeting on Mass Spectrometry, MAY 12-16, 1997, SMOLENICE, SLOVAKIA.

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Abstract

The high-energy collision-induced dissociation spectra of [M+Li](+) ions of n-butyl palmitate or heptadecanoate and their labelled isotopomers containing a H-2(2)-label at the C-2, C-3 and C-4 positions are reported, As is the case for positions remote from the charge, the removal of a hydrogen radical at proximate positions has been found to be an initial and decisive fragmentation reaction when [M + Li](+) ions are subjected to high-energy collision-induced dissociation, It is also demonstrated that direct C-C cleavage involving gamma bonds relative to the carbonyl bond or bonds more remote from the charge may be regarded as a secondary fragmentation route, Direct C-C cleavage of the beta bond should, however, be considered as a reaction competitive with C-H cleavage in the formation of the corresponding distonic ions. (C) 1997 John Wiley & Sons, Ltd.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Journal or Publication Title:	RAPID COMMUNICATIONS IN MASS SPECTROMETRY
Publisher:	JOHN WILEY & SONS LTD
ISSN:	0951-4198
Date:	1997
Volume:	11
Number:	16
Number of Pages:	5
Page Range:	pp. 1808-1812
Publication Status:	Published
Title of Event:	15th Informal Meeting on Mass Spectrometry
Location of Event:	SMOLENICE, SLOVAKIA
Date(s) of Event:	MAY 12-16, 1997
URI:	http://wrap.warwick.ac.uk/id/eprint/16258

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