Abstract
Amidoxime fibers-palladium II complexes [Pd II -AOFs] were synthesized by combining PdCl 2 with amidoxime fibers. Pd II -AOFs are novel phosphine-free recyclable heterogeneous catalysts for Suzuki coupling reaction of aryl bromides with phenylboronic acid to provide the corresponding products in high yields. The heterogeneous catalyst can be readily recovered by simple filtration and reused several times without significant loss in its activity. ► A novel phosphine-free amidoxime fibers-pd II catalyst has been synthesized. ► The catalyst exhibits good catalytic activity and stability for Suzuki reaction. ► XPS, XRD, SEM and EDS were used to guess the catalytic process.
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