Molecular Catalysis ( IF 3.9 ) Pub Date : 2017-10-13 , DOI: 10.1016/j.mcat.2017.10.010 Aravind L. Gajengi , Clinton S. Fernandes , Bhalchandra M. Bhanage
The present protocol reports a facile and efficient method of preparation for Cu2O/Ag nanocomposite (NPs) using ethylene glycol under microwave irradiation within a short duration of time. The synthesized Cu2O/Ag NPs well characterized by XRD, FEG-SEM, EDS and NH3-TPD, ICP-AES techniques. Futher, the catalytic application of Cu2O/Ag NPs for the synthesis of substituted pyrroles via multicomponent reaction (MCRs) by using an aldehyde, amine, 1,3-diketone and nitromethane at room temperature. The catalytic system provide good yields of products for a wide range of substrates. Also catalyst shows excellent catalytic recyclability without much loss of its activity.
中文翻译:
Cu 2 O / Ag纳米复合材料的合成及其在一锅合成吡咯中的催化应用
本协议报告了在微波辐射下短时间内使用乙二醇制备Cu 2 O / Ag纳米复合材料(NPs)的简便有效方法。通过XRD,FEG-SEM,EDS和NH 3 -TPD,ICP-AES技术对合成的Cu 2 O / Ag NPs进行了很好的表征。此外,在室温下,通过使用醛,胺,1,3-二酮和硝基甲烷,通过多组分反应(MCR)催化应用Cu 2 O / Ag NPs合成取代的吡咯。催化体系可为多种底物提供良好的产品收率。催化剂也显示出优异的催化可循环性,而没有太多损失其活性。