Turkish Journal of Chemistry
Abstract
4-Ethoxycarbonyl-5-phenyl-2,3-dihydro-2,3-furandione 1 was reacted with o-phenylenediamine, substituted ureas and methylcarbamate or acetamide to give quinoxaline 2, pyrimidine 3 and benzoylmalonic acid 4 derivatives, respectively. Benzoylmalonic acid derivative 4a was converted into a new oxozinedione derivative, 5, by refluxing its solution in xylene containing a catalytic amount of p-toluene sulfonic acid. In addition, triphenylpyrazole carboxylic acid derivative 6 was obtained from the reaction of 4a with diphenylhydrazine.
DOI
-
Keywords
Cyclic oxalyl compounds, quinoxaline, pyrimidine, benzoylmalonic acid, oxazine, pyrazole carboxylic acid.
First Page
659
Last Page
666
Recommended Citation
ŞENER, AHMET; GENÇ, HASAN; TOZLU, İSRAFİL; and ŞENER, M. KASIM (2004) "Studies on the Reactions of 4-Ethoxycarbonyl-5-phenyl-2,3-dihydro-2,3- furandione with Some NH Nucleophiles," Turkish Journal of Chemistry: Vol. 28: No. 5, Article 13. Available at: https://journals.tubitak.gov.tr/chem/vol28/iss5/13