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Synthesis of 1-substituted 3,5-diaryl-2-pyrazolines by the reaction of α,β-unsaturated ketones with hydrazines

✍ Scribed by Albert Lévai; József Jekö

Publisher: Journal of Heterocyclic Chemistry
Year: 2006
Tongue: English
Weight: 99 KB
Volume: 43
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570430117

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✦ Synopsis

Abstract

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1‐Acetyl‐, 1‐propionyl‐ and 1‐phenyl‐3,5‐diaryl‐2‐pyrazolines have been synthesized by the reaction of the appropriate α,β‐unsaturated ketones with hydrazine or phenylhydrazine in hot acetic acid or propionic acid. Structures of all new 2‐pyrazolines 16‐40 have been elucidated by microanalyses, ^1^H and ^13^C nmr spectroscopies.

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