Examinando por Autor "Bustos, Carlos"
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Ítem Facile synthesis of isoxazoles and pyrazoles from ß-diketohydrazones(Sociedad Chilena de Química, 2009) Bustos, Carlos; Schott, Eduardo; Ríos, Marcela; Sánchez, Christian; Cárcamo, Juan-GuillermoNew 3,5-dimethyl-4-[(E)-4-(R1-phenyl)diazenyl]isoxazoles and 3,5-dimethyl-1-(R2-phenyl)-4-[(E)-(R1-phenyl)diazenyl]-1H-pyrazoles may be obtained by reaction of 3-[2-(R1-phenyl)hydrazono)]pentane-2,4-dione with H2NOH-HCl and R2-4-C6H4-NHNH2, respectively. The reactions were performed in ethanol as solvent and catalyzed by glacial acetic acid.Ítem Facile synthesis of isoxazoles and pyrazoles from ß-diketohydrazones JO - Journal of the Chilean Chemical Society A1 - SN - VL - 54 Y1 - 2009 SP - 267 EP - 268 PB - scielocl ER -(Sociedad Chilena de Química, 2009) Bustos, Carlos; Schott, Eduardo; Ríos, Marcela; Sánchez, Christian; Cárcamo, Juan-GuillermoAbstract: New 3,5-dimethyl-4-[(E)-4-(R1-phenyl)diazenyl]isoxazoles and 3,5-dimethyl-1-(R2-phenyl)-4-[(E)-(R1-phenyl)diazenyl]-1H-pyrazoles may be obtained by reaction of 3-[2-(R1-phenyl)hydrazono)]pentane-2,4-dione with H2NOH-HCl and R2-4-C6H4-NHNH2, respectively. The reactions were performed in ethanol as solvent and catalyzed by glacial acetic acid.