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Pyrazoles. 6. Synthesis of novel heteroaryl 4-pyrazolyl ketones

✍ Scribed by Marianne Hahn; Gottfried Heinisch; Wolfgang Holzer; Helga Schwarz


Book ID
112130075
Publisher
Journal of Heterocyclic Chemistry
Year
1991
Tongue
English
Weight
274 KB
Volume
28
Category
Article
ISSN
0022-152X

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Regiospecific one-pot synthesis of new t
✍ Helio G. Bonacorso; Marli R. Oliveira; Michelle B. Costa; LetΓ­cia B. Da Silva; A πŸ“‚ Article πŸ“… 2005 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 85 KB

A convenient and general method for the regiospecific synthesis of three novel series of 1-(2-thenoyl)-, 1-(2furoyl)-and 1-(isonicotinoyl)-3-alkyl(aryl)-5-hydroxy-5-trifluoromethyl-4,5-dihydro-1H-pyrazoles, in good yields (53 -91 %), from the cyclocondensation reactions of 1,1,1-trifluoro-4-alkoxy-4