499779-08-7Relevant academic research and scientific papers
Synthesis of tetrahydro-1H,7H-benzo[ij]quinolizine-1,7-dione derivatives
Kantminene,Mikul'skene,Hormi,Beresnevicius
, p. 422 - 428 (2002)
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.
