4-HYDROXY-2-QUINOLONES. 137. SYNTHESIS, STRUCTURE, AND SPECTROSCOPIC CHARACTERISTICS OF DIETHYL 2,2'-DIOXO-1,2,3,4,1',2',3',4'-OCTAHYDRO[4,4']BIQUINOLINYL-3,3'-DICARBOXYLATE
DOI:
https://doi.org/10.1007/7312Keywords:
4-chloro-2-oxo-1, 2-dihydroquinolines, reductive dehalogenation, X-ray analysisAbstract
Treatment of the ethyl esters of 1-R-4-chloro-2-oxo-1,2-dihydroquinoline-3-carboxylic acids with zincdust in glacial acetic acid gives high yields of diethyl 2,2'-dioxo-1,2,3,4,1',2',3',4'-octahydro[4,4']biquinolinyl-3,3'-dicarboxylates. The structural features of the synthesized compounds together with their NMR and mass spectra are discussed.
How to Cite
Ukrainets, I. V.; Tkach, A. A.; Kravtsova, V. V.; Turov, A. V. Chem. Heterocycl. Compd. 2007, 43, 1525. [Khim. Geterotsikl. Soedin. 2007, 1799.]
For this article in the English edition see DOI 10.1007/s10593-007-0236-1