作者:Xinhao Zhu、Kerou Wan、Jin Zhang、Hui Zhao、Yang He、Yangmin Ma、Xiufang Yang、Michal Szostak
DOI:10.1021/acs.orglett.3c02238
日期:2023.8.25
Herein, we report an exceedingly mild method for the direct, transition-metal-free esterification of thioamides through the selective generation of tetrahedral intermediates. The method represents the first transition-metal-free approach to the thioamide to thionoester transformation in organic synthesis. This reactivity has been accomplished through N,N-Boc2-thioamides that engage in ground-state
在此,我们报告了一种极其温和的方法,通过选择性生成四面体中间体来直接、无过渡金属酯化硫代酰胺。该方法代表了有机合成中第一个无过渡金属的硫代酰胺向硫代酸酯转化的方法。这种反应性是通过N,N -Boc 2 -硫代酰胺实现的,其参与 n N → π* C=S共轭的基态不稳定。“单原子”生物等排硫代酰胺的基态不稳定将扩大有价值的酰胺键功能化反应的库。