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- W4281485722 abstract "Abstract A chiral bis‐hosphine ligand bearing two pyridyl crown ethers was complexed with primary ammonium salts of different absolute configuration to form supramolecular chiral catalysts, which were successfully applied in the Rh‐catalyzed asymmetric hydrogenation of α‐dehydroamino acid esters and Ir‐catalyzed asymmetric hydrogenation of quinoxalines. By comparison with the non‐assembled catalysts, the complexation between the chiral catalysts and primary ammoniums obviously improved enantioselectivities. Up to 11 % enhancement in ee values in asymmetric hydrogenation of α‐dehydroamino acid esters and 30 % enhancement in ee values in asymmetric hydrogenation of quinoxalines were achieved." @default.
- W4281485722 created "2022-05-26" @default.
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- W4281485722 date "2022-05-20" @default.
- W4281485722 modified "2023-10-15" @default.
- W4281485722 title "Self‐Assembly of a Chiral Bis‐phosphine Ligand Bearing Pyridyl Crown Ethers and Chiral Primary Ammoniums: Application to Catalytic Asymmetric Hydrogenation Reactions" @default.
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- W4281485722 doi "https://doi.org/10.1002/slct.202200912" @default.
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