Reactions of [RuCl2(COD)]n(COD = cyclo-octa-1,5-diene) with the chiral bidentate phosphine ligands 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl, BINAP, and 2,2′-bis(di-p-tolylphosphino)-1,1′-binaphthyl, p-tolyl-BINAP, give new chiral ruthenium(II) complexes, Ru2Cl4(BINAP)2(NEt3)and Ru2Cl4(p-toly-BINAP)2(NEt3) respectively, which serve as excellent catalysts for asymmetric hydrogenation of alkenes and some cyclic anhydrides.
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Journal of the Chemical Society, Chemical Communications
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