Regioselective α-Amination of Ethers Using Stable <i>N</i>-Chloroimides and Lithium <i>tert</i>-Butoxide
作者:Makafui Gasonoo、Zachary W. Thom、Sébastien Laulhé
DOI:10.1021/acs.joc.9b00824
日期:2019.7.5
Herein we describe a metal-free regioselective α-amination of ethers mediated by N-chloroimides in ethereal solvents in the presence of lithium tert-butoxide. This reactivity of N-chloroimides leads to the synthesis of hemiaminal ethers in good to excellent yields at room temperature. This C–H functionalization is achieved without the use of a light, heat source, or external radical initiators. Initial
在此,我们描述了在叔丁醇锂存在下,在醚溶剂中由N-氯酰亚胺介导的醚的无金属区域选择性 α-胺化。N-氯酰亚胺的这种反应性导致在室温下以良好至极好的产率合成半缩醛醚。这种 C–H 功能化是在不使用光、热源或外部自由基引发剂的情况下实现的。初步的机理研究表明反应通过自由基途径进行。