Earth-abundant nickel, coordinated with a suitable bisphosphine ligand, was found to be an efficient catalyst for the asymmetric hydrogenation of 2-amidoacrylates, affording the chiral α-amino acid esters in quantitative yields and excellent enantioselectivities (up to 96% ee). The active catalyst component was studied by NMR and HRMS, which helped us to realize high catalytic efficiencyon a gram scale hydrogenation with a low catalyst loading (S/C=2000). The hydrogenated products could be simply converted to chiral α-amino acids, β-amino alcohols, and their bioactive derivatives. Furthermore, the catalytic mechanism was investigated using deuterium-labeling experiments and computational calculations.
Nickel-Catalyzed Asymmetric Hydrogenation of 2-Amidoacrylates.
Yawen Hu,Jianzhong Chen,Bowen Li,Zhenfeng Zhang,I. Gridnev,Wanbin Zhang
Published 2020 in Angewandte Chemie
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- Publication year
2020
- Venue
Angewandte Chemie
- Publication date
2020-01-20
- Fields of study
Medicine, Chemistry
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Semantic Scholar, PubMed
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