Najafpour et al. further modified silica coated TurboBeads with a manganese oxide coating. They showed that the resulting material was a well performing catalyst for water oxidation (in the presence of Ce(VI) and Ru complexes) that could be recovered from the reaction mixture rapidly by the use of magnetism.
Naijafpour et al. Int. J. Hydrogen Energ. 2016 (link)
Based on their high magnetic properties, TurboBeads represent a promising substrate for semi-heterogeneous catalysts. In this paper, Wittmann et al. functionalized TurboBeads nanoparticles with a pyrene-tagged palladium NHC complex. This chemical group was shown to immobilize reversibly on the surface of the TurboBeads and the catch/release could be controlled by adjusting the reaction temperature. This catalyst catch-release concept was investigated in detail for the hydroxycarbonylation of aryl halides in water. 14 catalytical cycles utilizing the same material were shown and no effect on the velocity of the reactions could be observed.
Angew. Chem. Int. Ed. 2010 (link)
Schätz et al. functionalized TurboBeads with azabis-(oxazoline)-copper(II) complexes via an azide (“click”) reaction. The catalytic performance for the enantioselctive benzoylation of diols was addressed in batch and continuous flow reactors. In the continuous flow reactor a high degree of agitation was achieved, as a rotating magnetic field was applied in the reaction chamber. This led to a magnetically fixated, moving catalyst bed with highly increased mass transfer rates.
Schätz et al. Chem. Mater. 2010 (link)
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