Enantioselective Copper(I/II)-Catalyzed Conjugate Addition of Nitro Esters to β,γ-Unsaturated α-Ketoesters

Sheng Zhang, Kun Xu, Fengfeng Guo, Yanbin Hu, Prof. Zhenggen Zha and Prof. Zhiyong Wang

 Chem. Eur. J. 2014, 20, 979 – 982

DOI: 10.1002/chem.201303512