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Imidazoles and pyrazoles from isonitrosoflavanones and schiff bases

✍ Scribed by Alan R. Katritzky; Maria Michalska; Richard L. Harlow; Stanley H. Simonsen

Book ID
107858143
Publisher
Elsevier Science
Year
1976
Tongue
French
Weight
160 KB
Volume
17
Category
Article
ISSN
0040-4039

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πŸ“œ SIMILAR VOLUMES

Formation of Pyrazoles and of Imidazoles
Formation of Pyrazoles and of Imidazoles from Phenacyl Ketal Hydrazones of Aldehydes
✍ David Scarpetti†; Kunio Kano††; Jean-Pierre Anselme πŸ“‚ Article πŸ“… 2010 πŸ› Wiley (John Wiley & Sons) βš– 376 KB

The cyclization of phenacyl ethylene ketal (pok) hydrazones of glyoxals, benzaldehyde and acetaldehyde to the pyrazoles is described, in the case of the hydrazones of benzaldehyde and acetaldehyde, the corresponding imidazoles are also formed. A mechanism is suggested for the formation of the imidaz