Asymmetric [1,2] Stevens Rearrangement of (<i>S</i>)-<i>N</i>-Benzylic Proline-derived Ammonium Salts under Biphasic Conditions
作者:Eiji Tayama、Shintaro Nanbara、Takeshi Nakai
DOI:10.1246/cl.2006.478
日期:2006.5
The Stevens rearrangement of (S)-N-benzylic proline-derived ammonium salt with cesium hydroxide in 1,2-dichloroethane is shown to proceed with a high degree of the N-to-C chirality transmission to afford the α-substituted proline derivatives in high enantio-purities.
(S)-N-苄基脯氨酸衍生的铵盐与氢氧化铯在 1,2-二氯乙烷中的 Stevens 重排显示出以高度的 N 到 C 手性传递进行以提供 α-取代的脯氨酸衍生物在高对映纯度。