Highly efficient synthesis of β-amino acid derivatives via asymmetric hydrogenation of unprotected enamines

被引:201
作者
Hsiao, Y [1 ]
Rivera, NR
Rosner, T
Krska, SW
Njolito, E
Wang, F
Sun, YK
Armstrong, JD
Grabowski, EJJ
Tillyer, RD
Spindler, F
Malan, C
机构
[1] Merck & Co Inc, Merck Res Labs, Dept Proc Res, Rahway, NJ 07065 USA
[2] Merck & Co Inc, Merck Res Labs, Dept Analyt Res, Rahway, NJ 07065 USA
[3] Solvias AG, Basel, Switzerland
关键词
D O I
10.1021/ja047901i
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A direct asymmetric hydrogenation of unprotected enamino esters and amides is described. Catalyzed by Rh complexes with Josiphos-type chiral ligands, this method gives β-amino esters and amides in high yield and high ee (93-97% ee). No acyl protection/deprotection is required. Copyright © 2004 American Chemical Society.
引用
收藏
页码:9918 / 9919
页数:2
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