Stereoselective Asymmetric Synthesis of Pyrrolidines with Vicinal Stereocenters Using a Memory of Chirality-Assisted Intramolecular S<sub>N</sub>2′ Reaction
作者:Jae Hyun Kim、Yundong Chung、Hongjun Jeon、Seokwoo Lee、Sanghee Kim
DOI:10.1021/acs.orglett.0c01307
日期:2020.5.15
An efficient strategy for the asymmetric synthesis of pyrrolidines with vicinal quaternary-tertiary or quaternary-quaternary stereocenters was established. A "memory of chirality" intramolecular SN2' reaction of α-amino ester enolates with allylic halides provided a functionalized pyrrolidine with excellent dia- and enantioselectivity. This method features construction of stereochemically enriched