4,5-Diamino-1-phenyl-1,7-dihydro-6H-pyrazolo[3,4-b]pyridin-6-one in the synthesis of fused tricyclic systems
✍ Scribed by E. S. Komarova; V. A. Makarov; L. M. Alekseeva; G. V. Avramenko; V. G. Granik
- Book ID
- 106520705
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 417 KB
- Volume
- 56
- Category
- Article
- ISSN
- 1573-9171
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The title compound, C 19 H 16 BrN 3 O, was synthesized by the reaction of 5-amino-3-methyl-1-phenylpyrazole with 4-bromophenylaldehyde and Medrum's acid in glycol under microwave irradiation. X-ray crystal structure analysis reveals three crystallographically independent molecules in the asymmetric
The title compound, C 20 H 15 FN 4 O, was synthesized by the reaction of 5-amino-3-methyl-1-phenylpyrazole with ethyl 2cyano-3-(4-fluorophenyl)-1-acylate in glycol under microwave irradiation. The tetrahydropyridine ring adopts a distorted envelope conformation. The pyrazole ring forms a dihedral an