Some Reactions with 3-(3′-Pyridyl)-1-phenyl-2-pyrazolin-5-one
✍ Scribed by Prof. Dr. A. Sammour; Dr. T. Zimaity; Dr. M. Elborai
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 380 KB
- Volume
- 314
- Category
- Article
- ISSN
- 1615-4150
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
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,
R 80 Ph f C6H4CH3-(2) c C,jH,CH3-(4) h d C,H40CH3-(2) i 1037 -HCN 7 R C,H40H-(4) C, H, NH, -(4) ' ? J C d N H R t CpH4N02-(4) C6H4CI-(2) I Key Word: 2-Pyrazolin-5-one derivatives e attack of the amine at the cyclic amide carbonyl function should afford 6 by ring opening and recyclization. Alternatel
## Abstract The reaction of some active methylene compounds with 4‐(dicyanomethylene)‐3‐methyl‐1‐phenyl‐2‐pyrazoline‐5‐one (1a) has been investigated. This reaction involves a Michael addition to afford 4‐spirocyclobutenes 3 or cyclopyran‐2‐pyrazoline‐5‐ones 4, depending on the active methylene der