Acid-Base Properties and Prototropic Tautomerism of Isomeric 1,2,4-Triazin-3- and -5-ones
โ Scribed by I. V. Khabibulina; R. E. Trifonov; A. P. Volovodenko; M. S. Eremenkova; O. N. Chupakhin; V. L. Rusinov; G. V. Zyryanov; V. A. Ostrovskii
- Book ID
- 111609205
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2004
- Tongue
- English
- Weight
- 84 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1070-4280
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๐ SIMILAR VOLUMES
The pyrazolo [3,4-d][1,2,3]triazin-4-ones 3 and imidazo [4,5-d][1,2,3]triazin-4-ones 4 are analogs structurally related to purines that have showed a wide and significant variety of biological activity. These compounds were synthesized by one-pot diazotization of 5-amino-1H-pyrazole-4-carbonitriles
The 2-aminoacylhydrazines form 1,4,5,6-tetrahydro-l,2,4-triazin-6-ones with orthoesters and iminoesters. Benzylidene and isopropylidene derivatives of the 2-aminoacylhydrazines give the corresponding derivatives of 3-amino-l-imidazolin-4-ones with the same reagents. In connection witL ~.he study of