Rhodium-Complex-Catalyzed Hydroformylation of Olefins with CO2 and Hydrosilane.
Ren X1,2, Zheng Z2, Zhang L2, Wang Z2, Xia C1, Ding K2,3.
Angew Chem Int Ed Engl. 2017 Jan 2;56(1):310-313. doi: 10.1002/anie.201608628. Epub 2016 Nov 30.
A rhodium-catalyzed one-pot hydroformylation of olefins with CO2 , hydrosilane, and H2 has been developed that affords the aldehydes in good chemoselectivities at low catalyst loading. Mechanistic studies indicate that the transformation is likely to proceed through a tandem sequence of poly(methylhydrosiloxane) (PMHS) mediated CO2 reduction to CO and a conventional rhodium-catalyzed hydroformylation with CO/H2 . The hydrosilylane-mediated reduction of CO2 in preference to aldehydes was found to be crucial for the selective formation of aldehydes under the reaction conditions.© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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