Abstract

Bis(acetato) and dichloro complexes of ruthenium(II) containing P-stereogenic ligands have been prepared and tested in the asymmetric catalytic hydrogenation of functionalised olefins and keto esters. The best performance (52.6% ee) has been obtained in the hydrogenation of ethyl acetoacetate with [RuCl(PPh 3)(( S, S)-1,1′-bis(1-naphthylphenylphosphino)ferrocene)] 4.

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