SYNTHESIS OF TETRAHYDRO-1H,7H-BENZO[<i>ij</i>]QUINOLIZINE-1,7-DIONE DERIVATIVES

Authors

  • K. Кантминене Kaunas University of Technology, LT-3028 Kaunas
  • Г. Микульскене Institute of Biochemistry, LT-2600 Vilnius
  • O. Хорм University of Oulu, Linnanmaa POB 3336 FIN-90571 Oulu
  • З. И. Бересневичюс Kaunas University of Technology, LT-3028 Kaunas

Keywords:

N-alkoxyphenyl-N-(2-carboxyethyl)-β-alanines, dioximes, diphenylhydrazones, 2,3,5,7-tetrahydro-1H,7H-benzo[ij]quinolizine-1,7-diones, cyclization

Abstract

Tetrahydro-1H,7H-benzo[ij]quinolizine-1,7-diones have been obtained by the cyclization of N-alkoxyphenyl-N-(2-carboxyethyl)-β-alanines. Fission of the ester bond occurs on cyclization of N-(4-ethoxyphenyl)-N-(2-carboxyethyl)-β-alanine, but the cyclization of the 3,4-dialkoxyphenyl derivative leads to the formation of 9-alkoxy-8-hydroxy-2,3,5,7-tetrahydro-1H,7H-benzo[ij]quinolizine-1,7-diones. The corresponding dioximes and diphenylhydrazones were obtained.

How to Cite
Kantminene, K.; Mikul'skene, G.; Hormi, O.; Beresnevicius, Z. I. Chem. Heterocycl. Compd. 2002, 38, 422. [Khim. Geterotsikl. Soedin. 2002, 487.]

For this article in the English edition, see DOI https://doi.org/10.1023/A:1016027204806

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Published

2002-04-25

Issue

No. 4 (2002)

Section

Original Papers