Regio- and diastereoselective reduction of chiraltrifluoromethyl α,β-unsaturated N-tert-butanesulfinyl ketoimines 1 was achieved by choosing appropriate reducing agent and either diastereomer of the corresponding trifluoromethylated allylic amines was obtained with good yield and excellent diastereoselectivity (up to >99 : 1 dr).
通过选择适当的还原剂,实现了手性三
氟甲基δ,δ-不饱和 N-叔丁基亚磺酰酮
亚胺 1 的区域和非对映选择性还原,并获得了相应的三
氟甲基烯丙基胺的非对映异构体,且收率高,非对映选择性极佳(达 >99 : 1 dr)。