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    Rh-Catalyzed Highly Enantioselective Hydroalkynylation Reaction of Norbornadiene Derivatives

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    The complexes of various Rh precusors with ferrocenyl chiral ligand (<i>R</i>,<i>S</i>)-Cy<sub>2</sub>PF-PPh<sub>2</sub> were found effective catalysts for the asymmetric hydroalkynylation reaction of norbornadiene derivatives. When RhCl<sub>3</sub>·3H<sub>2</sub>O was employed, good yields (up to 98%) and high enantioselectivities (up to >99.9% <i>ee</i>) could be obtained for the reactions of a broad scope of substrates
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