作者:Mara Braibante、Hugo Braibante、Luciana de Carvalho Tavares、Simone Rohte、Carla Costa、Ademir Morel、Caroline Stüker、Robert Burrow
DOI:10.1055/s-2007-983771
日期:2007.8
A series of 1,5-diphenyl-1 H-pyrazol-3-amines, 3-ethoxy-5-phenyl-1 H-pyrazole, 5-ethoxy-1,3-diphenyl-1 H-pyr-azole and 3-ethoxy-1,5-diphenyl-1 H-pyrazole were efficiently prepared from the regiocontrolled cyclization of α-oxoketene O, N-acetals and/or β-oxo thioxoesters with hydrazine derivatives using montmorillonite K-10 as solid support with ultrasound. The antimicrobial activity of the heterocyclic
一系列 1,5-二苯基-1 H-吡唑-3-胺、3-乙氧基-5-苯基-1 H-吡唑、5-乙氧基-1,3-二苯基-1 H-吡唑和 3-以蒙脱石 K-10 为固体载体,超声作用下,α-氧代烯酮 O、N-缩醛和/或 β-氧代硫代酯与肼衍生物的区域控制环化有效地制备了 ethoxy-1,5-diphenyl-1 H-pyrazole。杂环化合物的抗菌活性通过直接生物自显影试验进行评价。