Construction of stereogenic center beta to the N-Pyrrolidinyl moiety via diastereoselective reactions of tricyclic lactones and the synthesis of (−)-Indolizidine 195G
作者:Rou-Jie Huang、Ching-Zong Luo、Wei-Kai Liao、Hsiang-Yu Chuang、Yu-Jang Li
DOI:10.1016/j.tet.2024.134024
日期:2024.6
The Enolates of hexahydro-3,4-dioxa-8a-aza--indacen-2-ones can react with electrophiles in a substrate-controlled fashion to create a new stereogenic center positioned beta to the N-pyrrolidinyl moiety. Preferential diastereoselective reactions predominantly proceeded from the convex face of the enolates, yielding stereospecific alkylated or halo-substituted products with high yields and exceptional