Methyl group transfer upon gas phase decomposition of protonated methyl benzoate and similar compounds.
Rafał FrańskiBłażej GierczykMaciej ZalasWojciech JankowskiMarcin HoffmannPublished in: Journal of mass spectrometry : JMS (2018)
Gas phase decompositions of protonated methyl benzoate and its conjugates have been studied by using electrospray ionization-collision induced dissociation-tandem mass spectrometry. Loss of CO2 molecule, thus transfer of methyl group, has been observed. In order to better understand this process, the theoretical calculations have been performed. For methyl benzoate conjugates, it has been found that position of substituent affects the loss of CO2 molecule, not the electron donor/withdrawing properties of the substituent. Therefore, electrospray ionization-mass spectrometry in positive ion mode may be useful for differentiation of isomers of methyl benzoate conjugates.
Keyphrases
- tandem mass spectrometry
- liquid chromatography
- mass spectrometry
- high performance liquid chromatography
- gas chromatography
- ultra high performance liquid chromatography
- high resolution
- simultaneous determination
- electron transfer
- drug delivery
- molecular dynamics simulations
- ms ms
- high resolution mass spectrometry
- diabetic rats
- drug induced
- capillary electrophoresis