A. Komarov, I. Yakovlev, V. É. Zakhs
May 1, 2005
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0
Influential Citations
4
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Journal
Russian Journal of General Chemistry
Abstract
Phenylmalonyl dichloride reacted with 3-phenylpropynamide to give 4-hydroxy-5-phenyl-2-phenylethynyl-6H-1,3-oxazin-6-one. Treatment of the latter with hydrazine afforded 3,5-disubstituted 1,2,4-triazole. Reactions of 4-hydroxy-5-phenyl-2-phenylethynyl-6H-1,3-oxazin-6-one with methanol and ethanol led to formation of the corresponding malonamic acid esters. The structure of the products was proved by the 1H and 13C NMR and IR spectra, quantum-chemical calculations (PM3, MNDO, MINDO3), and some chemical transformations.