A Grubbs–Hoveyda-Type metathesis catalyst bearing a tris (perfluoroalkyl) silyl tag was immobilized in the fluorophilic phase of amphiphilic conetworks (APCNs). This catalytic system was applied to ring-closing metathesis (RCM) reactions in aqueous media. Different substrates were evaluated and with 10mol% of catalyst at 60° C good conversions were observed. Reuse of the catalytic system was possible, but resulted generally in lower ...