Homogeneous Catalysts on Soluble Organic Supports

By comparison with the non-immobilized catalyst, similar reaction rates in the hydroformylation of 1-hexene were noted. By ultrafiltration on an asymmetric polyethersulfone membrane, the catalyst could be repeatedly recycled with 2-7% loss of rhodium. 

dendrimer-based rhodium catalysts with a typical size of 2-4nm are soluble in several organic solvents and can be separated after the hydroformylation 

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