Thermal Condensation of 3-Trifluoromethyl-/and 3-Amino-1-phenyl-2-pyrazolin-5-ones with Aromatic Aldehydes. Synthesis of 4-Arylidene-pyrazolones and Pyrazolopyranopyrazoles.
✍ Scribed by Tariq R. Sobahi
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 19 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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📜 SIMILAR VOLUMES
## Abstract Solvent‐free condensation easily occurred by mixing aromatic aldehydes and 2,3‐dimethyl‐1‐phenyl‐3‐pyrazoline‐5‐one (antipyrine) in the presence of __p__‐toluenesulfonic acid as a solid acid catalyst at room temperature to give the corresponding disubstituted products as sole products i
2004 Thiazole derivatives R 0260 Synthesis and Reactions of 3-Methyl-1-phenyl-4-(3-phenyl-2-thiazolin-4-on-2-yl)pyrazolin-5-one (V). -(ATTA, A. H.; Rev. Roum. Chim. 49 (2004) 1,
## Abstract For Abstract see ChemInform Abstract in Full Text.
## 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