Abstract
Fengphos is a type of ferrocenyl diphosphine incorporating axial as well as central chirality, which is synthesized in three steps from Ugi amine (see scheme). Acting as ligands, they are effective in the Rh-catalyzed hydrogenation of a wide range of substrates, including dimethyl itaconate (ee values greater than 99 %) and ethyl β-acetamido acrylate (ee values up to 95 %).
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