The asymmetric transfer hydrogenation (ATH) of a series of γ-aryl-α,γ-dioxo-butyric acid esters has been accomplished smoothly. Six ferrocene-based chiral ligands have been prepared and applied in the reactions respectively. Simultaneously, enantiopure Ts-DPEN's utilization in the ATH also has been investigated and the products were obtained in 30–85% chemical yields with 37–95.5% ee.
Y. Mo, H. Nie, Y. Lei, D. Zhang, X. Li, S. Zhang and Q. Wang, RSC Adv., 2016, 6, 33126 DOI: 10.1039/C6RA02500E
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