Summary
3-Aroyl-4-aryl-2-pyrazolines (21–40) have been synthesized by the reaction of α,β-unsaturated ketones (1–20) with diazomethane. These 2-pyrazolines gave β-methyl-α,β-unsaturated ketones (41–46) on thermal denitrogenation.
Zusammenfassung
Die Umsetzung der α,β-ungesättigten Ketone1–20 mit Diazomethan lieferte die 3-Aroyl-4-aryl-2-pyrazoline21–40. Durch thermische Stickstoffabspaltung entstanden die β-Methyl-α,β-ungesättigten Ketone41–46.
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Dedicated to Prof. Dr.F. Sauter on the occasion of his 65th birthday
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Lévai, A. Synthesis and thermal decomposition of 3-aroyl-4-aryl-2-pyrazolines. Monatsh Chem 126, 1245–1251 (1995). https://doi.org/10.1007/BF00824303
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DOI: https://doi.org/10.1007/BF00824303