Comparison of two preparative methods: a polymer-supported catalyst by metal-complexation with a polymeric ligand or by polymerization of a metal complex

摘要

The difference between two methods for the synthesis of polystyrene-supported (R,S)-BINAPHOS-Rh(I) complex, namely (1) copolymerization of the monomeric ligand with divinylbenzene-ethylstyrene and then Rh-complex formation with the polymer-supported ligand, and (2) Rh-complex formation with the monomeric ligand and then immobilization of the Rh complex to polystyrene by copolymerization with divinylbenzene-ethylstyrene, is investigated by comparison of their catalytic performance, by surface analysis and particle-size measurement.