Synthesis of a new class of chiral 1, 5??diphosphanylferrocene ligands and their use in enantioselective hydrogenation

T Ireland, K Tappe, G Grossheimann…

Index: Ireland, Tania; Tappe, Katja; Grossheimann, Gabi; Knochel, Paul Chemistry - A European Journal, 2002 , vol. 8, # 4 p. 843 - 852

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Citation Number: 131

Abstract

Abstract A new family of ferrocenylphosphane ligands has been prepared. Their flexible synthesis allows many structural modifications. The asymmetric induction of these ligands was examined in the hydrogenation of functionalized C= C, C= O, and C= N bonds. The enantioselectivity of the reaction was strongly dependent on the substituent R at the position α to the ferrocene moiety. In many cases, both enantiomeric β-hydroxyesters of the ...

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