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The mass spectrometry of volatile derivatives—IV: Aryl trifluoroacetates
Author(s) -
Saxby M. J.
Publication year - 1970
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.1210040114
Subject(s) - chemistry , ion , fragmentation (computing) , alkyl , mass spectrometry , aryl , polyatomic ion , hydrocarbon , molecule , mass spectrum , medicinal chemistry , organic chemistry , chromatography , computer science , operating system
All the fluoro derivatives investigated exhibit strong molecular ions, which in many instances are also the base peaks. All the compounds with the exception of the p ‐acetyl derivative exhibit ions due to the loss of COCF 3 and (CO + COCF 3 ) from the molecular ion. Loss of CO from the molecular ion ranks as an important fragmentation except in cases where loss of a methyl group gives rise to ions which probably possess a tropylium structure. Alkyl ring substituted compounds exhibit intense hydrocarbon ions, which are also consistent with a tropylium structure.