CONVERSION OF 2-ETHYL-3,3,5,5-TETRAMETHYL- AND 2-ETHYL-1,3,3,5,5-PENTAMETHYL-1,2,4,5-TETRAHYDRO-3H-BENZ-2-AZEPINES BY THE ACTION OF ETHYL PROPIOLATE

Authors

  • Л. Г. Воскресенский Peoples' Friendship University of Russia, Moscow 117198
  • Т. Н. Борисова Peoples' Friendship University of Russia, Moscow 117198
  • Е. А. Сорокина Peoples' Friendship University of Russia, Moscow 117198
  • Л. Н. Куликова Peoples' Friendship University of Russia, Moscow 117198
  • А. В. Клейменов Peoples' Friendship University of Russia, Moscow 117198
  • С. В. Толкунов L. M. Litvinenko Institute of Physical Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk 83114
  • А. В. Варламов Peoples' Friendship University of Russia, Moscow 117198

DOI:

https://doi.org/10.1007/6566

Keywords:

activated alkynes, tetrahydrobenz-2-azepines, fission

Abstract

It has been shown that, on interacting 2-ethyl-3,3,5,5-tetramethyl- and 2-ethyl-1,3,3,5,5-pentamethyl-1,2,4,5-tetrahydro-3H-benz-2-azepines with  ethyl  propiolate in methanol, fission of the azepine ring occurs at the C(1)–N(2) bond involving a molecule of solvent. The indicated azepines do not react with acetylenedicarboxylic acid ester under these conditions.

How to Cite
Voskressensky, L. G.; Borisova, T. N.; Sorokina, E. A.; Kulikova, L. N.; Kleimenov, A. V.; Tolkunov, S. V.; Varlamov, A. V.  Chem. Heterocycl. Compd. 2009, 45, 1248. [Khim. Geterotsikl. Soedin. 2009, 1554.]

For this article in the English edition see DOI 10.1007/s10593-010-0414-4

 

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Published

2022-02-10

Issue

No. 10 (2009)

Section

Original Papers