Rational Optimization of Supramolecular Catalysts for the Rhodium-Catalyzed Asymmetric Hydrogenation Reaction
作者:Julien Daubignard、Remko J. Detz、Anne C. H. Jans、Bas de Bruin、Joost N. H. Reek
DOI:10.1002/anie.201707670
日期:2017.10.9
Rational design of catalysts for asymmetric transformations is a longstanding challenge in the field of catalysis. In the current contribution we report a catalyst in which a hydrogen bond between the substrate and the catalyst plays a crucial role in determining the selectivity and the rate of the catalytichydrogenation reaction, as is evident from a combination of experiments and DFT calculations
Phosphine Oxide Based Supramolecular Ligands in the Rhodium-Catalyzed Asymmetric Hydrogenation
作者:Julien Daubignard、Remko J. Detz、Bas de Bruin、Joost N. H. Reek
DOI:10.1021/acs.organomet.9b00484
日期:2019.10.28
and DFT calculations revealed the formation of strong hydrogen bonding between the two ligands. The complexes have been evaluated in the hydrogenation of several functionalized alkenes, leading to very high enantioselectivity for the substrates bearing a hydroxyl group. Also, kinetic studies showed that enhanced reaction rates of hydrogenation are observed in comparison with the supramolecular catalytic