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Direct Bifunctional Squaramide-Catalyzed Asymmetric N-Nitroso Aldol Reaction of Tertiary β-Carbonyl Esters

Hong-Jun Yang, Le Dai, Shi-Qiong Yang, Fen-Er Chen*
Fudan-DSM Joint Lab for Synthetic Method and Chiral Technology, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, P. R. of China
Fax: +86(21)65643811; e-Mail: rfchen@fudan.edu.cn;