Visible light induced Trifluoromethyl Migration: Easy Access to α-Trifluoromethylated Ketones from Enol Triflates
作者:Shuyang Liu、Jiyang Jie、Jipan Yu、Xiaobo Yang
DOI:10.1002/adsc.201701051
日期:2018.1.17
Herein, we reported a novel method to synthesize α-trifluoromethylated ketones from enol triflates. Involving a cascade sulfur dioxide extrusion and a CF3 (trifluoromethyl) radical addition process, this reaction proceeds at room temperature and is driven by visible light irradiation. This protocol bears good functional group compatibility, which can generate the desired products in good to excellent
在这里,我们报道了一种从烯醇三氟甲磺酸酯合成α-三氟甲基化酮的新方法。该反应涉及级联的二氧化硫挤出和CF 3(三氟甲基)自由基加成过程,该反应在室温下进行并由可见光照射驱动。该协议具有良好的官能团兼容性,即使以克为单位,也能以良好或极好的收率产生所需的产物。希望这种从烯醇三氟甲磺酸酯生成CF 3自由基的方法可以用于其他涉及自由基的反应中。