ISSN:
0030-493X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A study of the low and high-resolution mass spectra of caprolactam (I), 1-methylcaprolactam (II), 3-methylcaprolactam (III), 4-methylcaprolactam (IV), 5-methylcaprolactam (V), 6-methylcaprolactam (VI), 7-methylcaprolactam (VII) and deuterium labelled compounds has facilitated the proposal of some principal fragmentation mechanisms of ionized molecules of these compounds.The base peaks in the spectra of all compounds studied (except 3-methylcaprolactam) are the ions m/e 30 and m/e 44 respectively formed through the cleavage of the C6-C7 bond and the C2-N bond with simultaneous transfer of a hydrogen atom.It has been proved that the fragmentation of molecular ions leading to ions with the structure of cyclopentanone 2-methylcyclopentanone and 3-methylcyclopentanone respectively (according to the position of methyl group) is the general feature of the fragmentation of caprolactam and its methyl derivatives.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/oms.1210050604
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