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Studies in chemical ionization mass spectrometry part. XVI: Are the reactions of aliphatic cc double bonds with NO + governed by remote functional groups?
Author(s) -
Budzikiewicz H.,
Schneider B.,
Busker E.,
Boland W.,
Francke W.
Publication year - 1987
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.1210220713
Subject(s) - double bond , chemistry , mass spectrometry , mass spectrum , cleavage (geology) , ion , ionization , bond cleavage , chemical bond , abundance (ecology) , chemical ionization , spectral line , computational chemistry , stereochemistry , medicinal chemistry , organic chemistry , chromatography , catalysis , physics , materials science , astronomy , fishery , fracture (geology) , composite material , biology
It is shown that the characteristic fragments observed by Malosse and Einhorn ( Adv. Mass Spectrom. 1369 (1986)) in the CI(NO) spectra of alkenyl acetates and related compounds (cleavage of the double bond and formation of an acyl ion), which had not been reported, for alkenes and alkenoic acids, for example, are actually formed from all straight‐chain olefinic compounds (the only exceptions being where the double bond is too close to one of the ends of the chain). Their relative abundance may, however, vary from almost zero to 100%, and it is highly dependent on experimental parameters (e.g. the source temperature and even the type of instrument used). Apparent inconsistencies in the data reported in the literature could thus be resolved.