M. A. Mikhaleva, M. Repkova, V. P. Mamaev
Mar 1, 1985
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Journal
Chemistry of Heterocyclic Compounds
Abstract
Abstract4,6-Dihydroxy-5-acetylpyrimidine was obtained by the solvolysis of 4,6-dialkoxy-5-acetylpyrimidines. The hydrolysis of 4,6-dichloro-5-acetylpyrimidine leads to opening of the heteroring to give s-cis,trans conformera of 2-cyano-3-hydroxy-2-buteneamide. 2′,4,6-Trihydroxy[4′,5]bipyrimidine was obtained by the condensation of 4,6-dialkoxy-5-acetylpyrimidines with benzalbisurea. It is shown that the products of the reaction of the same ketones with benzaldehyde in the presence of sodium alkoxides are derivatives of δ-diketones.