Abstract
The chiral diphosphinite H8-BINAPO derived from H8-BINOL has been used in the Ir-catalyzed asymmetric hydrogenation of quinolines, and high enantioselectivity (up to 97% ee) was obtained. Immobilization of the iridium catalyst in poly(ethylene glycol) dimethyl ether (DMPEG) is also discussed. With DMPEG/hexane biphasic system, better enantioselectivities were obtained as compared to those observed in aprotic organic solvents. KGaA.
Original language | English |
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Pages (from-to) | 1755-1758 |
Number of pages | 4 |
Journal | Advanced Synthesis and Catalysis |
Volume | 347 |
Issue number | 14 |
DOIs | |
Publication status | Published - 1 Nov 2005 |
Keywords
- Asymmetric hydrogenation
- Immobilization
- Iridium
- Phosphinite ligands
- Poly(ethylene glycol) dimethyl ether
- Quinoline
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry