Microencapsulated Palladium Catalysts: Allylic Substitution and Suzuki Coupling Using a Recoverable and Reusable Polymer-Supported Palladium Catalyst

Abstract

Buried alive! A triphenylphosphane palladium catalyst was immobilized onto/into a polymer by microencapsulation and the polymer-supported catalyst (MC [Pd(PPh3)]) successfully used in several palladium-catalyzed reactions (one example is shown). The reactions proceeded in high yields, and the catalyst was recovered by filtration and reused. The air-sensitivity of the palladium complex is substantially suppressed by this immobilization.