C-C Cross-Coupling Reactions of Organosilanes with Terminal Alkenes and Allylic Acetates Using Pd^II Catalyst Supported on Starch Coated Magnetic Nanoparticles

Starch coated magnetic nanoparticles supported palladium catalyst has been explored to perform C-C cross coupling reactions, such as oxidative Heck coupling and Tsuji-Trost allylic coupling using organosilicon compounds as one of the coupling partners. The biopolymer coated magnetic catalyst was very easy to recover magnetically and was efficiently recycled in the subsequent batches. All the reactions were performed in air and thus the necessity of air and moisture free reaction condition is avoided. The present protocols show wide substrate scope and good yields of the products.