Gold (III) phosphorus complex immobilized on fibrous nano-silica as a catalyst for the cyclization of propargylic amines with CO2

In this study, The [email protected] NP was prepared through the ringopening polymerization of glycidol on the surface of KCC-1 to form [email protected] and then [email protected] NPs were functionalized using chlorodiphenylphosphine and phosphine-functionalized nanoparticles ([email protected]/PPh2) as a recyclable phosphorus ligand was obtained. Also, gold (III) complex of [email protected]/PPh2 ligand ([email protected]/PPh2/Au) was prepared which used for the cyclization of propargylic amines with CO2 to provide 2-oxazolidinones. High catalytic activity and ease of recovery from the reaction mixture using filtration, and several reuse times without significant losses in performance are additional eco-friendly attributes of this catalytic system.