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Chemistry of Heterocyclic Compounds

, Volume 15, Issue 4, pp 413–418 | Cite as

Mass spectra of piperidines with a shielded nitrogen atom

  • A. I. Ermakov
  • Zh. K. Torosyan
  • Yu. N. Sheinker
Article

Abstract

2,2,6,6-Tetramethylpiperidines with various substituants attached to the C4 atom [R=H, OH, CN, CH2COOH, C6H5, N(CH3)2, N(COCH3)CH2C6H5, N(CH2)5, and N(CH2CH2)O] were studied by means of mass spectrometry. The peculiarities of the fragmentation of the piperidine ring with a shielded electron pair at the heteroatom as a function of the type of substituent attached to the C4, atom are discussed. The fragmentation was studied with the use of high-resolution mass spectrometry, lowvoltage mass spectra, and deuterium labeling.

Keywords

Nitrogen Mass Spectrometry Mass Spectrum Organic Chemistry Nitrogen Atom 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • A. I. Ermakov
    • 1
  • Zh. K. Torosyan
    • 1
  • Yu. N. Sheinker
    • 1
  1. 1.S. Ordzhonikidze All-Union Scientific-Research Pharmaceutical-Chemistry InstituteMoscow

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