Highly Dispersed Pd Catalyst Locked in Knitting Aryl Network Polymers for Suzuki–Miyaura Coupling Reactions of Aryl Chlorides in Aqueous Media

Highly dispersed palladium chloride catalysts locked in triphenylphosphine-functionalized knitting aryl network polymers (KAPs) are developed and exhibit excellent activity under mild conditions in the Suzuki-Miyaura cross-coupling reactions of aryl chlorides in aqueous media. This work highlights that the microporous polymers not only play the role of support materials, but also protect the Pd species from aggregation and precipitation, hence, positively effect the catalysis activity.