Development of Palladium-exchanged Montmorillonite as a Highly Efficient and Heterogeneous Catalyst for Fujiwara Reaction and Wacker Oxidation

摘要

The Pd-exchanged montmorillonite (Pd-mont) was prepared by cation-exchange method using an aqueous Pd(CF_3COO)_2 solution.Characterization of the Pd-mont by means of IR,XPS,XRD and EXAFS techniques revealed that [Pd(CF_3COO)]~+ species was formed within the interlayer of the mont.We found that this Pd-mont acted as a highly efficient heterogeneous catalyst for activation of aromatic C-H bonds for addition to C-C multiple bonds,i.e.Fujiwara reaction and the Wacker oxidation.