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2005
Pyrimidine derivatives
R 0510
Synthesis and Hydrolytic Cleavage of 1-Aryl-5-cyano-6-(2-dimethylaminovinyl)-4-oxo(thioxo)-1,4-dihydropyrimidines. — The hydrolysis of title dimethylami03- 149 novinyldihydropyrimidine
derivatives (III) and (XIII), obtained in a three-step procedure starting from cyano(thio)acetamide, proceeds with recyclization to furnish pyridone and pyridinethione derivatives. In the case of pyrimidinone (III), the outcome is
influenced by the hydrolyzing agent (acid or base) [cf. (V) vs. (VI)], but for the analogous pyrimidinethione, the same product (XVI) is obtained in each hydrolysis reaction.
— (IVANOV, A. S.; TUGUSHEVA, N. Z.; ALEKSEEVA, L. M.; GRANIK*, V. G.;
Russ. Chem. Bull. 53 (2004) 4, 873-881; State Sci. Cent. Antibiot., Russ. Fed.,
Moscow 117105, Russia; Eng.) — Mischke
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