Study on the reactions of pyridine with fluorine-containing compounds in the gas phase by electron impact/Fourier transfer ion cyclotron resonance mass spectrometry

The gas-phase ion–molecule reactions of pyridine and fluorine-containing compounds have been studied by the electron impact/Fourier transfer ion cyclotron resonance mass spectrometry (EI/FTICRMS). Comparing the reaction of the standard sample perfluorotributylamine (PFTBA), in the case of 3-oxa-5-iodo-octafluoropentylsulfonyl azide (ICF2CF2OCF2CF2SO2N3), a series of addition–elimination products and loss 28 from the expected adducts were obtained. A possible reaction mechanism was discussed, which was consistent with the results obtained in the condensed phase. These results demonstrated that EI/FTICRMS is a complementary technique for study of the organic reactions.