Kinetic Resolution via the [2,3] Stevens Rearrangement of Epimeric Six-membered Ammonium Ylides: A New Entry to Enantio-enriched α-Amino Acid Derivatives
作者:Eiji Tayama、Hiroyuki Tanaka、Takeshi Nakai
DOI:10.3987/com-05-s(k)39
日期:——
The asymmetric [2,3] Stevens rearrangement of epimeric mixtures of N-allylic ammonium salts derived from (5R)-5-phenyl-1,4-oxazin-2-one is shown to proceed with efficient kinetic resolution to afford the unnatural α-aminoacid derivatives in high enantio-purities.
由 (5R)-5-phenyl-1,4-oxazin-2-one 衍生的 N-烯丙基铵盐的差向异构体混合物的不对称 [2,3] Stevens 重排显示以有效的动力学拆分进行,以提供非天然的 α -高对映纯度的氨基酸衍生物。