Synthesis of Aminopyrazolesfrom α- Oxoketene<i>O</i>,<i>N</i>-Acetals Using MontmorilloniteK-10/Ultrasound
作者:Mara E. Braibante、Hugo T. Braibante、Juliano K. da Roza、Danielle M. Henriques、Luciana de Carvalho Tavares
DOI:10.1055/s-2003-39398
日期:——
5(3)-Amino-3(5) phenylpyrazoles 3a-f have been conveniently prepared by condensation of α-oxoketene O,N-acetals 2a-g with hydrazine using montmorillonite K-10 as solid support under sonication.
5(3)-Amino-3(5) phenylpyrazoles 3a-f 是以δ-氧代酮类 O,N-乙缩醛 2a-g 与肼在超声条件下用蒙脱石 K-10 作为固体支持物进行缩合而制备的。