Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, P. R. China.
Chemistry. 2023 Jun 2;29(31):e202300704. doi: 10.1002/chem.202300704. Epub 2023 Apr 21.
Herein we present a nickel-catalyzed regio- and enantioselective ring opening reaction of 3,4-epoxy amides and esters with aromatic amines as nucleophiles. This method features high regiocontrol, diastereospecific S 2 reaction pathway, broad substrate scope, and mild reaction conditions, furnishing a wide range of γ-amino acid derivatives in a highly enantioselective manner. Notably, the selective nucleophilic attack to the C-4 position of epoxides is controlled by the directing effect of the pendant carbonyl group.
在此,我们提出了一种镍催化的 3,4-环氧酰胺和酯与芳胺作为亲核试剂的区域和对映选择性开环反应。该方法具有高区域控制、立体选择性 S2 反应途径、广泛的底物范围和温和的反应条件,以高度对映选择性的方式提供了广泛的γ-氨基酸衍生物。值得注意的是,环氧的 C-4 位置的选择性亲核进攻由侧链羰基的导向效应控制。