CapturePhos - A phosphorus-rich polymer as a homogeneous catalyst scavengerElectronic supplementary information (ESI) available: General, metal-loading, catalysis and regeneration procedures; spectra. See DOI: 10.1039/c7cy00391a

A soft polymer network prepared through a phosphane-ene reaction successfully sequestered Rh and Ru from hydrogenation and ring closing metathesis reactions, respectively. Scavenging effectively quenches catalytic activity and ultimately removes >98% of the metal. Homogeneous catalysts are efficiently removed from solution by an insoluble phosphorus-rich polymer network.