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Mass spectral fragmentation of thioesters. 1—Identification of low energy, slow processes
Author(s) -
Wood Gordon Walter,
Kiremire Bernard T.
Publication year - 1979
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.1210141105
Subject(s) - chemistry , fragmentation (computing) , alkyl , ion , mass spectrum , thiol , electron ionization , mass spectrometry , yield (engineering) , cleavage (geology) , medicinal chemistry , photochemistry , organic chemistry , chromatography , materials science , geotechnical engineering , fracture (geology) , computer science , engineering , metallurgy , ionization , operating system
A variety of thiol and thion esters, including acetates and benzoates with n ‐butyl and β‐phenethyl alkyl groups, have been studied by electron impact mass spectrometry. Several rearrangement ions were documented and their persistence in low voltage and field ion spectra demonstrated. Among the significant ions found in the rich thion spectra, the most general requires O to S rearrangement of the alkyl group and subsequent cleavage to yield acyl ions (CH 3 CO or PhCO). This process is more important in longer chain compounds than in the methyl and ethyl homologues studied previously.