Organotellurium-catalyzed oxidative deoximation reactions using visible-light as the precise driving energy
作者:Xin Deng、Rongrong Qian、Hongwei Zhou、Lei Yu
DOI:10.1016/j.cclet.2020.09.012
日期:2021.3
Irradiated by visible light, the recyclable (PhTe)2-catalyzed oxidative deoximation reaction could occur under mild conditions. In comparison with the thermo reaction, the method employed reduced catalyst loading (1 mol% vs. 2.5 mol%), but afforded elevated product yields with expanded substrate scope. This work demonstrated that for the organotellurium-catalyzed reactions, visible light might be an
在可见光的照射下,可回收(PhTe)2催化的氧化脱氧反应可能在温和的条件下发生。与热反应相比,该方法使用了减少的催化剂负载量(1 mol%对2.5 mol%),但是在扩大的底物范围的情况下提高了产品收率。这项工作表明,对于有机碲催化的反应,可见光可能是比加热更为精确的驱动能量,因为可见光可以准确地破坏Te Te键,从而生成活性自由基催化中间体,而不会破坏易碎的取代基(例如杂环)的基板。使用O 2代替爆炸性H 2 O 2 从大规模应用的角度来看,作为氧化剂的氧化剂提供了更安全的反应条件。