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Synthesis of 1,5-Disubstituted 3-(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-2-pyrazolines

✍ Scribed by Albert Lévai; József Jekő

Publisher
Springer Vienna
Year
2006
Tongue
English
Weight
149 KB
Volume
137
Category
Article
ISSN
0026-9247

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## Abstract 2‐Amino‐6‐(3‐methyl‐5‐oxo‐1‐phenyl‐2‐pyrazolin‐4‐yl)‐4‐phenylpyridine‐3‐carbonitrile (1) obtained by the reaction of 4‐(1‐iminoethyl)‐3‐methyl‐1‐phenyl‐2‐pyrazolin‐5‐one with benzylidenemalononitrile, was reacted with triethyl orthoformate followed by hydrazine hydrate, acetic anhydride