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2005
Enantioselective syntheses
O 0031
Monophosphite Ligands Derived from Carbohydrates and H8-BINOL: Highly
Rh-Catalyzed Asymmetric Hydrogenations. — A new class of
27- 026 Enantioselective
monophosphite ligands is prepared from carbohydrates, PCl3 and (R)-H8-BINOL.
Catalytic activity of these ligands is tested in the rhodium-catalyzed hydrogenation
of enamides (IV) and (VI) as well as itaconic acid ester (VIII). The best results are
achieved with the β-D-fructose-derived ligand (I). — (HUANG, H.; LIU, X.; CHEN,
H.; ZHENG*, Z.; Tetrahedron: Asymmetry 16 (2005) 3, 693-697; Dalian Inst. Chem.
Phys., Chin. Acad. Sci., Dalian 116023, Peop. Rep. China; Eng.) — Mischke
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