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Proof of concept: Magnetic fixation of dendron-functionalized iron oxide nanoparticles containing palladium nanoparticles for continuous-flow suzuki coupling reactions

: Rehm, Thomas H.; Bogdan, Anca; Hofmann, Christian; Löb, Patrick; Shifrina, Zinaida; Morgan, David Gene; Bronstein, Lyudmila M.


ACS applied materials & interfaces 7 (2015), Nr.49, S.27254-27261
ISSN: 1944-8244
ISSN: 0013-936X
ISSN: 1944-8252
Fraunhofer ICT-IMM ()

A new concept for the magnetic immobilization of catalytically active material has been developed for continuous-flow Suzuki cross-coupling reactions. The reversible immobilization of the magnetic catalyst material inside a novel capillary microreactor has been achieved by utilizing a newly designed reactor housing with 208 small permanent magnets. As a catalyst material, magnetic Fe3O4 nanoparticles decorated with polyphenylenepyridyl dendrons and loaded with Pd nanoparticles have been employed. Both batch and continuous-flow experiments prove the activity of the catalyst and the applicability of this new microreactor concept.