Catalytic Enantioselective Synthesis of Highly Functionalized Pentafluorosulfanylated Pyrrolidines
作者:Qun Zhao、Thi Minh Ha Vuong、Xing-Fen Bai、Xavier Pannecoucke、Li-Wen Xu、Jean-Philippe Bouillon、Philippe Jubault
DOI:10.1002/chem.201706167
日期:2018.4.11
The first catalytic asymmetric synthesis of highly functionalized pentafluorosulfanylated pyrrolidines is described. The method, based on a 1,3‐dipolar cycloaddition reaction of aryl and heteroaryl‐substituted glycine Schiff bases with pentafluorosulfanyl acrylic esters, gave access to a broad range of pyrrolidines bearing aryl, naphtyl, and heteroaryl groups. By using Xing‐Phos as a catalyst, the
描述了高度官能化的五氟磺酰化吡咯烷的第一催化不对称合成。该方法基于芳基和杂芳基取代的甘氨酸席夫碱与五氟硫烷基丙烯酸酯的1,3-偶极环加成反应,可得到带有芳基,萘基和杂芳基的多种吡咯烷。通过使用Xing-Phos催化剂,可以以高收率,良好至高区域选择性以及出色的非对映和对映选择性(最高ee高达98%)获得相应的产物 。该方法允许使用对映选择性方法首次制备对映富集的SF 5化合物。