Reaction chromatography/mass spectrometry. 16. Chemical ionization mass spectra of certain N-trifluoroacetylamines |
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| Authors: | V G Zaikin A V Ivanov G A Kliger A I Mikaya |
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| Institution: | 1. Institute of Chemistry, Bashkir Scientific Center, Ural Branch, Academy of Sciences of the USSR, Ufa
2. A. V. Topchiev Institute of Petrochemical Synthesis, Academy of Sciences of the USSR, Moscow
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| Abstract: | | 1. |
Chemical ionization mass spectra (isobutane) of the positive ions of N-trifluoroacetylamines are characterized by intense peaks of molecular ions and also ions that are typical for the electron impact mass spectra.
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With chemical ionization (reagent gas isobutane or helium) of N-trifluoroacetylamines, low-stability M + F]– anions are formed. Specific for the primary amines are the anions M-H]– and M-alkyl]–. For the derivatives of secondary amines, the anions M-alkyl]–, M-alkane]–, and M-alkyl s-alkene]–; for the derivatives of cyclic amines, the anions M-H]– and ions formed as a result of ring cleavage.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1526–1530, July, 1989. |
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