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Hydroformylation of Styrene Derivatives Catalyzed by Rhodium Single-Atoms Supported on CeO2
Styrene Hydroformylation with In Situ Hydrogen: Regioselectivity Control by Coupling with the Low-Temperature Water-Gas Shift Reaction.
Angew. Chem. Int. Ed. 2020;
17 June 2020 (online)
A rhodium single-atom catalyst on CeO2 (Rh1/CeO2) was prepared by mixing RhCl3 and CeO2 in deionized water, followed by calcination at 400 °C (eq. 1). Rh1/CeO2 catalyzed the hydroformylation of styrene derivatives with hydrogen generated in situ from water and carbon monoxide to give the corresponding linear aldehydes in ≤ 99% conversion (eq. 2).
Rh1/CeO2was characterized by means of ICP-OES, STEM, HAADF-STEM, FT-IR, EDS analyses. In the hydroformylation of styrene, Rh nanoparticles supported on CeO2 (NP-Rh/CeO2) gave 3-phenylpropan-1-ol rather than 3-phenylpropanal, with 99% selectivity (eq. 3).