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Reaction of protonated acetaldehyde with methanol in the gas phase
Author(s) -
König S.,
Kofel P.,
Reinhard H.,
Sägesser M.,
Schlunegger U. P.
Publication year - 1993
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.1210281020
Subject(s) - acetaldehyde , chemistry , methanol , protonation , adduct , photochemistry , mass spectrometry , medicinal chemistry , ethanol , inorganic chemistry , organic chemistry , ion , chromatography
The ion–molecule reactions between protonated acetaldehyde and methanol were explored on a quadrupole, quistor, quadrupole tandem mass spectrometer. In addition to proton transfer to methanol and subsequent methanol ionmolecule chemistry, the protonated acetaldehyde–methanol adduct and methylated acetaldehyde could be detected. Experiments with labelled counterparts showed that the formation of methylated acetaldehyde corresponds to substitution of the oxygen‐bound hydrogen of protonated acetaldehyde by the methyl group of methanol. The reaction rates involved and H–D exchange rates were determined.