Highly Modular<i>P-O-P</i>Ligands for Asymmetric Hydrogenation
作者:Héctor Fernández-Pérez、Miquel A. Pericàs、Anton Vidal-Ferran
DOI:10.1002/adsc.200800311
日期:2008.9.5
The preparation of a library of new P-O-P ligands (phosphine-phosphites and phosphine-phosphinites), easily available in two synthetic steps from enantiopure Sharpless epoxy ethers, is reported. The “lead” catalyst of the series has proven to have outstanding catalytic properties in the rhodium-catalysed asymmetric hydrogenation of a wide variety of functionalised alkenes (16 examples). The excellent
Highly Modular POP Ligands for Asymmetric Hydrogenation: Synthesis, Catalytic Activity, and Mechanism
作者:Héctor Fernández-Pérez、Steven M. A. Donald、Ian J. Munslow、Jordi Benet-Buchholz、Feliu Maseras、Anton Vidal-Ferran
DOI:10.1002/chem.200902915
日期:2010.6.11
pure POPligands (phosphine–phosphite), straightforwardly available in two synthetic steps from enantiopure Sharpless epoxy ethers is reported. Both the alkyloxy and phosphite groups can be optimized for maximum enantioselectivity and catalyticactivity. Their excellent performance in the Rh‐catalyzed asymmetrichydrogenation of a wide variety of functionalized alkenes (26 examples) and modular design
Asymmetric Hydrogenation of Heteroaromatic Compounds Mediated by Iridium−(<i>P-OP</i>) Complexes
作者:José L. Núñez-Rico、Héctor Fernández-Pérez、J. Benet-Buchholz、Anton Vidal-Ferran
DOI:10.1021/om100955t
日期:2010.12.27
A library of modular iridium complexes derived from P-OP ligands has been evaluated in iridium-mediated asymmetrichydrogenations of heteroaromaticcompounds. The “lead” catalysts efficiently catalyzed the hydrogenation of several substituted quinolines and one quinoxaline (10 examples, up to 92% ee).