Dissertação
Estudo de parâmetros reacionais em moinho de bolas na síntese de aril(heteroaril)-1h-pirazóis
Fecha
2012-08-08Registro en:
PAVEGLIO, Guilherme Caneppele. Study of reaction parameters in ball mill in the Synthesis of aryl(heteroaryl)-1h-pyrazoles. 2012. 124 f. Dissertação (Mestrado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2012.
Autor
Paveglio, Guilherme Caneppele
Institución
Resumen
This paper describes a study of reaction parameters in a ball mill in the synthesis of
1H-pyrazole acid catalyzed. The studied parameters were: amount of reactants,
frequency, reaction time, amount of catalyst, number of milling balls, different
catalysts, diameter and material of the milling balls. Another study was conducted to
study the mechanism of solid-solid reaction involved in the cyclocondensation
between enaminones and hydrazine hydrochloride acid catalyzed. These mixtures
were studied by thermal analysis (TGA and DSC), where eight enaminones were
evaluated and four eutectic mixtures were identified.