Abstract A new strategy for the encapsulation of magnetic nanobeads was developed by using the in situ self-assembly of an organic–inorganic hybrid polymer. The hybrid polymer of {[Cu (bpy)(BF 4) 2 (H 2 O) 2](bpy)} n (bpy= 4, 4′-bipyridine) was constructed on the surface of amino-functionalized magnetic beads and the resulting hybrid-polymer- encapsulated beads were utilized as catalysts for the oxidation of silyl enolates to provide ...