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首页> 外文期刊>Journal of industrial and engineering chemistry >3(BTC) 2 metal-organic framework catalyzed N-arylation of benzimidazoles and imidazoles with phenylboronic acid]]>
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3(BTC) 2 metal-organic framework catalyzed N-arylation of benzimidazoles and imidazoles with phenylboronic acid]]>

机译:<![CDATA [CU 3 (BTC) 2 金属 - 有机框架催化 N 苯并咪唑和亚咪唑与苯硼酸的亚胺化]]>

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摘要

The present work reports the catalytic activity of Cu3(BTC)2(BTC: 1,3,5-benzenetricarboxylate) in C–N coupling of benzimidazole with phenylboronic acid to affordN-arylbenzimidazole in high yield under mild reaction conditions. A series of optimization results indicate that Et3N is an optimal base to promote this reaction. This protocol is applied to synthesize a series ofN-arylated azoles in moderate to high yields under the present experimental conditions. Furthermore, the catalyst stability is checked by powder XRD, UV–vis diffuse reflectance spectroscopy and FT-IR. These data indicate that there is a change in the crystalline nature of Cu3(BTC)2after the reaction, but however, reusability studies reveal that the catalyst can be recycled four cycles without any decay in its activity.
机译:本作者将Cu3(BTC)2(BTC)2(BTC:1,3,5-苯所述羧酸甲酯)的催化活性报告在苯并咪唑与苯基硼酸的C-N偶联中,以低于温和的反应条件下的高产率为C-N偶联。 一系列优化结果表明ET3N是促进该反应的最佳基础。 应用该方案以在本实验条件下,在中等至高产率中合成一系列芳族化唑。 此外,通过粉末XRD,UV-VI扩散反射光谱和FT-IR检查催化剂稳定性。 这些数据表明Cu3(BTC)2后结晶性质的变化,但是,可重用性研究表明,催化剂可以再循环四个循环而没有任何衰减的活性。

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