Pyrazole synthesis under microwave irradiation and solvent-free conditions

…, N Zanatta, HG Bonacorso, MAP Martins

Index: Buriol, Lilian; Frizzo, Clarissa P.; Marzari, Mara R. B.; Moreira, Dayse N.; Prola, Lizie D. T.; Zanatta, Nilo; Bonacorso, Helio G.; Martins, Marcos A. P. Journal of the Brazilian Chemical Society, 2010 , vol. 21, # 6 p. 1037 - 1044

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Citation Number: 20

Abstract

This paper presents a study of solvent-free reaction conditions using microwave irradiation (MW) to obtain 4, 5-dihydro-1H-pyrazoles and dehydrated pyrazoles by the cyclocondensation reaction of 4-alkoxy-1, 1, 1-trifluoro-3-alken-2-ones [CF3C (O) CH= C (R¹) OR, where R/R¹= Et/H, Me/Me and Me/Ph] with hydrazines [NH2NH-R², where R²= CO2Me, Ph, CH2CH2OH]. Some reactions were performed under the same reaction ...

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