Organocatalyzed Enantioselective Mannich Reaction of Pyrazoleamides with Isatin-Derived Ketimines
作者:Tian-Ze Li、Xi-Bo Wang、Feng Sha、Xin-Yan Wu
DOI:10.1021/jo500145w
日期:2014.5.16
The first organocatalytic enantioselective Mannich reaction of pyrazoleamides with isatin-derived N-Boc ketimines has been developed to afford 2-oxindole-based chiral β-amino amides in good yields (84–97%) with excellent diastereo- and enantioselectivities (up to 99:1 dr and >99% ee).
已开发出吡唑酰胺与靛红衍生的N -Boc酮亚胺的第一个有机催化对映选择性曼尼希反应,能够以良好的非对映和对映选择性(高达99%)提供基于2-氧吲哚的手性β-氨基酰胺,产率高(84-97%)。 :1 dr和> 99%ee)。