作者:Chetan C. Chintawar、Vivek W. Bhoyare、Manoj V. Mane、Nitin T. Patil
DOI:10.1021/jacs.2c02799
日期:2022.4.27
Presented herein is the first report of enantioselective Au(I)/Au(III) redox catalysis, enabled by a newly designed hemilabile chiral (P,N)-ligand (ChetPhos). The potential of this concept has been demonstrated by the development of enantioselective 1,2-oxyarylation and 1,2-aminoarylation of alkenes which provided direct access to the medicinally relevant 3-oxy- and 3-aminochromans (up to 88% yield
本文介绍了对映选择性 Au(I)/Au(III) 氧化还原催化的第一份报告,该催化由新设计的半可比手性 (P,N)-配体 (ChetPhos) 实现。烯烃的对映选择性 1,2-氧基芳基化和 1,2-氨基芳基化的发展证明了这一概念的潜力,这提供了直接获得药用相关的 3-氧基和 3-氨基色满(产率高达 88% 和 99 %ee)。进行了 DFT 研究以解开对映决定步骤,这表明磷的更强反式影响允许将底物选择性定位在氮周围存在的C 2 -对称手性环境中,从而赋予高水平的对映选择性。