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.
|Número de páginas||12|
|Publicación||Boletin de la Sociedad Chilena de Quimica|
|Estado||Publicada - 2001|
Áreas temáticas de ASJC Scopus
- Química (todo)