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Mass spectrometry of isomeric methyl phenylpentanoates and methyl phenylnonanoates
Author(s) -
Ansell M. F.,
Whitfield G. F.
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.1210030902
Subject(s) - fragmentation (computing) , methyl group , mass spectrometry , mass spectrum , chemistry , cleavage (geology) , branching (polymer chemistry) , analytical chemistry (journal) , medicinal chemistry , chromatography , organic chemistry , group (periodic table) , materials science , operating system , fracture (geology) , computer science , composite material
The mass spectra of methyl 3‐, 4‐ and 5‐phenyl pentanoates, and all the straight‐chain methyl phenylnonanoates have been recorded. The major fragmentation patterns have been discussed; when the phenyl group is non‐terminal, cleavage was observed at the branching position. It is shown that a mixture of methyl 3‐, 4‐ and 5‐phenylpentanoates may be analysed both qualitatively and quantitatively by mass spectrometry; in a methyl phenylnonanoate mixture a similar analysis is possible with the exception of the 8‐ and 9‐phenyl isomers.