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A highly electron‐donating and conformationally rigid P‐chiral bis(trialkylphospholane) ligand 2 (DuanPhos) has been prepared in both enantiomeric forms through a concise syn‐thesis. Rh‐ 2 complex has exhibited remarkably high enantio‐selectivities (up to >99% ee ) and reactivities (up to 10,000 TON) for the hydrogenation of a wide variety of functionalized prochiral alkenes (5 different types), which provides a very practical catalytic system for the preparation of various synthetically useful chiral compounds. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
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Liu et al. (2005) studied this question.
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