HINDERED INTERNAL ROTATION ABOUT A C–N BOND IN SOME TRISUBSTITUTED 1,3,5-TRIAZINES

Authors

  • А. П. Енгоян Armenian Agricultural Academy, Yerevan 375009
  • С. С. Мамян Armenian Agricultural Academy, Yerevan 375009
  • Т. А. Гомкцян Armenian Agricultural Academy, Yerevan 375009
  • Э. Н. Амбарцумян Armenian Agricultural Academy, Yerevan 375009
  • А. С. Ворсканян Armenian Agricultural Academy, Yerevan 375009
  • К. А. Элиазян Armenian Agricultural Academy, Yerevan 375009
  • В. А. Пивазян Armenian Agricultural Academy, Yerevan 375009
  • В. В. Довлатян Armenian Agricultural Academy, Yerevan 375009

DOI:

https://doi.org/10.1007/8228

Keywords:

2, 4, 6-trisubstituted 1, 3, 5-triazines, hindered internal rotation, isomers, free energy of activation

Abstract

We have studied the temperature dependence of the  1H NMR spectra of some 2,4,6-trisubstituted 1,3,5-triazines having an NHAlk or NAlk2 group or groups at the position 2 or 2 and 4 of the heterocycle. We have shown that rotation of these groups about the C–N bond is hindered. We have calculated the free energies of activation for the rotation processes.

How to Cite
Hyengoyan, A. P.; Mamyan, S. S.; Gomktsyan, T. A.; Hambardzumyan, E. N.;  Vorskanyan, A. S.; Eliazyan, K. A.; Pivazyan, V. A.; Dovlatyan, V. V.  Chem. Heterocycl. Compd. 2005, 41, 1059. [Khim. Geterotsikl. Soedin. 2005, 1236.]

For this article in the English edition, see DOI 10.1007/s10593-005-0279-0


Downloads

Published

2023-10-30

Issue

No. 8 (2005)

Section

Original Papers