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.

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。