A solution to the unmet synthetic challenge of achieving highly atropo-enantioselective transesterification of Bringmann's lactones has been realized, employing a chiral bifunctional amine thiourea as promoter. The synergistic activation of the lactones and alcohols/phenols by the respective thiourea and amine groups is crucial for achieving the highly enantioselective, high-yielding dynamic kinetic
                                    使用手性双官能胺
硫脲作为
促进剂,实现了对Bringmann 内酯的高度atropo-enantioselective 酯交换的未满足的合成挑战的解决方案。相应的
硫脲和胺基团对内酯和醇/
酚的协同活化对于实现高对映选择性、高产率的动态动力学拆分过程至关重要。该协议在温和的反应条件下提供了具有广泛底物范围的高光学纯、轴向手性联芳化合物。