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Keywords
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C–C cross-coupling reaction, Post-synthesis (PSM) strategy, Palladium nanoparticles, MIL101(Cr), Putrescine
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Abstract
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MIL-101(Cr) metal-organic frameworks (MOFs) possess advantageous properties, such as high surface
area and porosity, which render them effective as catalytic supports. In this study, MIL-101(Cr) powder
was functionalized with putrescine (PUT) via post-synthetic modification (PSM). Subsequently, a novel
strategy was employed to incorporate palladium nanoparticles into the functionalized MIL-101(Cr)
framework. The resulting Pd-loaded, functionalized MIL-101(Cr) catalysts were assessed for their
catalytic efficiency in Suzuki–Miyaura carbon–carbon cross-coupling reactions. In particular, these
catalysts were used to couple phenylboronic acid with various aryl halides (Ar–X, where X=I, Br, Cl,
F). To maximize catalytic performance, key reaction parameters including the amount of catalyst, the
amount and type of solvent, and the reaction time were optimized. The catalyst exhibited excellent
reusability and stability, maintaining its efficiency over multiple reaction cycles.
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