Two-Step Synthesis of β-Alkyl Chalcones and Their Use in the Synthesis of 3,5-Diaryl-5-alkyl-4,5-dihydropyrazoles. -Treatment of β-alkyl chalcones (IV) according to A) affords the N1-unsubstituted derivatives (V). They are unstable and therefore directly converted into various N1-acyl dihydropyrazoles. -(COX*, C. D.; BRESLIN, M. J.; MARIANO, B.
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