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Pyrazolo[3,4-b]pyridines. I. Xanthine and isoguanine analogs derived from 1-methylpyrazolo[3,4-b]pyridine

✍ Scribed by S. W. Schneller; D. R. Moore


Book ID
112125263
Publisher
Journal of Heterocyclic Chemistry
Year
1978
Tongue
English
Weight
157 KB
Volume
15
Category
Article
ISSN
0022-152X

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πŸ“œ SIMILAR VOLUMES


1H-pyrazolo[3,4-b]pyridines
✍ H. HΓΆhn; Th. Denzel; W. Janssen πŸ“‚ Article πŸ“… 1972 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 891 KB
Convenient synthesis of pyrazolo[3,4-b]p
✍ Chtiba Samar; Jemmezi FayΓ§el; Khiari Jameleddine πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 French βš– 255 KB

An expedient method for the synthesis of 2-phenyl-5-aryl-2,3-dihydropyrazolo [3,4-b]pyridin-3-ones and 2-phenyl-3-oxo-2,3-dihydropyrazolo[3,4-b]pyridine-5-carbaldehyde in a single-step via condensation of vinamidinium salts with 3-amino-1-phenyl-2-pyrazolin-5-one is described.