A NEW AND FACILE SYNTHESIS OF 5-ARYLPYRIMIDINES AND 4-ARYLPYRAZOLES

Abstract

A condensation of 2-aryl-3-(methylthio)acroleins (3a)-(3e), a new masked form of arylmalondialdehydes, with amidines yielded the corresponding 5-arylpyrimidines (4a)-(4k). Similarly, the reaction of 3 with N-substituted hydrazines gave the corresponding 1-substituted 4-arylpyrzolone.s (5a)-(5j)

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