Abstract
Reforming mesoporous silica was provided by the reaction of SBA‐15 with (3-aminopropyl)triethoxysilane, the product of which was treated with furfural to give SBA-propyl-imine-furan. In the next step, palladium chloride was attached to the functionalized SBA‐15, so Pd nanoparticles immobilized on the mentioned catalyst for providing an applicable catalyst to use in the Sonogashira cross-coupling reaction. The high stability and performance of functionalized heterogeneous hybrid catalyst of Pd@SBA-Pr-imine-furan in overall were highly essential. The nano-structured Pd@SBA-Pr-imine-furan catalyst was studied for Sonogashira cross-coupling reaction by phenylacetylene and various aryl halides under reflux conditions with a small amount of catalyst. In comparison with the earlier reports, this paper offered several benefits such as short reaction times, high yields of products, catalyst stability, quick recovery, and catalytic activity for at least seven continuous runs.
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