Synthesis of Palladium complexes containing β-diketonate and NHC ligands with bulky aryl groups and their catalytic polymerization of the functional norbornenes

초록

Palladium complexes containing various NHC (N-heterocyclic carbene) ligands have been successfully synthesized by the reaction with various β-diketonates. Treatments of Pd(acac)2 with NHC salts such as IPr·HCl or IMes·HCl resulted in [Pd(acac)(NHC)Cl] complexes and these complexes are characterized by NMR and elemental analysis. Moreover, these palladium complexes showed moderate to good catalytic activities towards functional norbornene polymerization.