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Mass spectra of some thionocarbamates
Author(s) -
Łożyński Marek
Publication year - 1982
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210170302
Subject(s) - fragmentation (computing) , mass spectrum , chemistry , delocalized electron , protonation , alkyl , hydrogen atom , ion , nitrogen atom , radical , spectral line , computational chemistry , stereochemistry , photochemistry , organic chemistry , physics , astronomy , computer science , operating system
The mass spectra of a number O‐alkylthionocarbamates with two, one or no alkyl substituents on the nitrogen atom are presented and discussed. The main primary fragmentation pathways are McLafferty rearrangements, including the double so‐called protonated McLafferty rearrangement. Generally, rearrangement products give charge delocalized ions, which release hydroxyl or sulphydryl radicals and water or hydrogen sulphide, to produce stable fragments. It has been found that the position of alkyl moieties may be deduced on the basis of mass spectral fragmentation patterns.