Palladium coordinated in N-heterocyclic carbene-functionalized porous organic polymer for efficient oxidative carbonylation of glycerol

Palladium coordinated in N-heterocyclic carbene-functionalized porous organic polymer (Pd@PQP-NHC) was successfully prepared via a facile copolymerization and successive immobilization method. The obtained Pd@PQP-NHC that featured relatively large surface area, hierarchical pore structure, and strong electron interaction between Pd species and bis-NHC ligand, displayed very high catalytic activity for the oxidative carbonylation of glycerol. A 0.025 mol% of Pd loading was sufficient for 96% conversion of glycerol with a high turnover frequency (TOF) of 1901 h(-1). Moreover, the catalyst could be reused at least nine consecutive recycles without obvious loss of its initial activity.