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SYNTHESIS OF HETEROCYCLIC COMPOUNDS XXII. PREPARATION OF 6-ARYL-2-THIOXOPYRIMIDINES
Navio, Jose L. Garcia,Lorente, Antonio,Soto, Jose L.
, p. 305 - 311 (2007/10/02)
The reactions of different ethyl benzylidenecyanoacetates (I) and benzylidenemalononitriles (V) with thiourea in an alcohol-alkoxide medium, provide a new and simple method for the synthesis of 6-aryl-5-cyano-4-oxo-2-thioxohexahydropyrimidines (III) and 4
