Synthesis of 1-n-ALKYL-3-METHYL- And 1-n-ALKYL-3-PHENYL-5-PYRAZOLONES and formyl derivatives

J. Belmar, J. Alderete, C. Zuniga, C. Jiménez, V. Jiménez, H. Nünez, R. Grandy, A. Yori

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

7 Citas (Scopus)

Resumen

3-Methyl- and 3-phenyl-5-pyrazolones were alkylated and formylated. The phenyl derivative was less reactive towards alkylation. However in the formylation step 1-n-alkyl3-methyl- and 1-n-alkyl-3-phenyl-5-pyrazolones showed no difference in reactivity. The alkylated products exist as 5-pyrazolones in chloroform solutions and in dimethylsulfoxide their structure is a 5-hydroxy-pyrazole. Chloroform and dimethyl sulfoxide solutions of 4formyl derivatives have a structure that is better described as 4-hydroxymethylene-5pyrazolone.

Idioma originalInglés
Páginas (desde-hasta)459-470
Número de páginas12
PublicaciónBoletin de la Sociedad Chilena de Quimica
Volumen46
N.º4
DOI
EstadoPublicada - 2001

Áreas temáticas de ASJC Scopus

  • Química (todo)

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