作者:Shun-ichi Hashimoto、Hiroshi Kogen、Kiyoshi Tomioka、Kenji Koga
DOI:10.1016/s0040-4039(00)70997-x
日期:——
The 1,4-addition of Grignard reagents to chiral α,β-unsaturated cyclic aldimines (3), prepared from the corresponding cycloalkenecarboxaldehydes (1) and optically active α-amino acid tert-butyl esters (2, was found to give, after hydrolysis, trans-2-substituted cycloalkanecarboxaldehydes (5) in reasonably high enantiomeric purities.
发现格里雅试剂向由相应的环烯甲醛(1)和旋光性α-氨基酸叔丁酯(2)制备的手性α,β-不饱和环状醛亚胺(3)中加成1,4-水解时,反式-2-取代的环烷烃甲醛(5)的纯度很高。