Chemistry of Heterocyclic Compounds

, Volume 2, Issue 4, pp 408–412 | Cite as

Heteroatom derivatives of aziridine

IV. Reaction of ethylenimine with boron trifluoride
  • M. G. Voronkov
  • L. A. Fedotova


Reaction of ethylenimine with boron trifluoride at −78° C gives N-β-fluoroethyl-B-difluoroborazene FCH2CH2NHBF2. Acetylation of the latter with acetic anhydride gives N-acetyl-N-β-fluoroethyl-B-difluoroborazene FCH2CH2N(COMe)BF2. The IR spectra of these two compounds are investigated. N-β-fluoroethyl-B-difluoroborazene can react further with ethylenimine to give ultimately a polymeric product with the composition [(FCH2CH2NH)2BF]n which is also obtained by reacting BF3 with excess ethylenimine. Reaction of N-B-fluoroethyl-B-trifluoroborane with triethylamine gives N-triethyl-B-trifluoroborane Et3NBF3.


Acetic Organic Chemistry Boron Anhydride Triethylamine 
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Copyright information

© The Faraday Press, Inc. 1967

Authors and Affiliations

  • M. G. Voronkov
    • 1
  • L. A. Fedotova
    • 1
  1. 1.Institute of Organic SynthesisAS LatvSSRRiga

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