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2005
Enantioselective syntheses
O 0031
Very Efficient Phosphoramidite Ligand for Asymmetric Iridium-Catalyzed
Alkylation. — The ligand (I) is found to be the best of the family presented.
04- 028 Allylic
The reaction of a variety of linear or branched allylic carbonates or acetates in the presence of (I) affords the branched product (II) and (VI) in high yield and with high regio(up to > 99:1) and enantioselectivity (up to 98%). (IVe) is a useful precursor for the
preparation of (R)-baclofen. — (ALEXAKIS*, A.; POLET, D.; Org. Lett. 6 (2004)
20, 3529-3532; Dep. Org. Chem., Univ. Geneva, CH-1211 Geneva 4, Switz.; Eng.)
— Steudel
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