Polymer-supported macrocyclic Schiff base palladium complex: An efficient and reusable catalyst for Suzuki cross-coupling reaction under ambient condition

Polymer-supported macrocyclic Schiff base palladium complex was prepared and characterized. The catalyst exhibits excellent catalytic activity and stability for Suzuki cross-coupling reaction under ambient condition. Various aryl bromides were coupled with aryl boronic acids in DMF/H2O, under air, in the presence of 0.1 mol% of the catalyst to afford corresponding cross-coupled products in high yields within 20–30 min. Furthermore, the heterogeneous catalyst can be readily recovered by simple filtration and reused several times without significant loss in its activity.

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► Polymer-supported macrocyclic Schiff base palladium complex has been synthesized and characterized.
► The catalyst exhibits excellent catalytic activity and stability in the room-temperature Suzuki cross-coupling reaction.
► Various aryl bromides were coupled with aryl boronic acids to afford corresponding products in high yields within 20–30 min.
► The catalyst can be readily recovered by simple filtration and reused for several times without significant loss in its activity.