A powerful and multifunctional catalyst for organic synthesis, transformation, and environmental remediation: A polyImidazole supported trimetallic catalyst

We have constructed a state-of-the-art polyimidazole-supported trimetallic composite, PIm/FenZnnAg, for organic synthesis, transformation, and environmental remediation on a single platform. The sustainable chemistry of organic reactions involving three-component coupling, CO2 insertion, [3 + 2]-click, Knoevenagel condensation, and CO2 cycloaddition reactions, and environmental pollutant reduction and bacterial inhibition are performed to comprehensively evaluate the power of this multifunctional catalyst. Most reactions withstand good functional group tolerance, producing forty-one derivatives with molecularly distinct moieties at good to near-quantitative yields under benign reaction conditions. Full chemical, microscopic, and structural characterizations reveal that metallic Ag, ZnO, and Fe2O3 with well-defined nanostructures are well interspersed and integrated on the PIm support. The metallic centers provide a conjugated multivalent architecture that work synergistically on a platform with moderate surface area and good CO2 adsorption capacity is the key to the multi-functionalities and effectiveness of PIm/FenZnnAg, which is a current demand for developing green sustainable heterogeneous catalysts.