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. Author manuscript; available in PMC: 2021 Aug 6.
Published in final edited form as: Tetrahedron Lett. 2020 Jul 3;61(32):152196. doi: 10.1016/j.tetlet.2020.152196

Scheme 4.

Scheme 4.

Reductive amination of ketoacids. Reagents and conditions: ketoacid (100 μmol), Ir1 (1.0 μmol), HCOONH4 (1.0 mmol), CH3OH (0.5 mL), 37 °C, 6 h. Reactions were performed in triplicate and the average yields are shown above. Products were quantified by 1H NMR spectroscopy using 1,3,5-trimethoxybenzene as an internal standard. Isolated yields are shown with an asterisk (*).