HIGHLY EFFICIENT SILICA GEL-SUPPORTED 1,2-DIAMINOCYCLOHEXANE-Pd CATALYST FOR SUZUKI-MIYAURA AND SONOGASHIRA COUPLING REACTIONS

摘要

A palladium(Pd)catalyst was prepared by immobilization of a 1,2-diaminocyclohexane based Pd-complex onto amorphous silica gel and its applications as a heterogeneous catalyst for Suzuki-Miyaura and Sonogashira coupling reactions are described.The catalyst was highly efficient,reusable and air-stable.