Yttrium-Catalyzed Regioselective Aminolysis of 2,3-Epoxy Esters and Amides
作者:Chuan Wang、Hongqing Yao
DOI:10.1055/a-2077-5084
日期:2023.12
Herein, an yttrium-catalyzed regioselective ring-opening reaction of 2,3-epoxy esters and amides with amines as nucleophiles is presented. This method features high regiocontrol, an enantiospecific SN2 reaction pathway, a broad substrate scope, and mild reaction conditions, furnishing a wide range of α-hydroxy β-amino esters and amides in regioisomerically pure forms. Notably, the selective nucleophilic
在此,介绍了一种钇催化的 2,3-环氧酯和酰胺与胺作为亲核试剂的区域选择性开环反应。该方法具有高区域控制、对映特异性 S N 2 反应途径、广泛的底物范围和温和的反应条件,可提供范围广泛的区域异构纯形式的 α-羟基 β-氨基酯和酰胺。值得注意的是,对 C-3 位的选择性亲核攻击受底物羰基的定向作用控制。
Synthesis of (−)-Octalactin A by a Strategic Vanadium-Catalyzed Oxidative Kinetic Resolution
作者:Alexander T. Radosevich、Vincent S. Chan、Hui-Wen Shih、F. Dean Toste
DOI:10.1002/anie.200800554
日期:2008.5.5
Efficient stereoselective synthesis of the epoxyacid fragment of the azinomycins
作者:Robert S. Coleman、Christopher R. Sarko、Jens P. Gittinger
DOI:10.1016/s0040-4039(97)01322-1
日期:1997.8
Three concise enantioselective synthetic routes to the C17C21 epoxyacid segment of the azinomycins are presented and were based on a Sharpless asymmetric epoxidation/kineticresolution of racemicallylicalcohol (±)-3 that occurred with reversal of the expected sense of enantioselection.