Halogen-Bond-Promoted Photoactivation of Perfluoroalkyl Iodides: A Photochemical Protocol for Perfluoroalkylation Reactions
作者:Yaxin Wang、Junhua Wang、Guo-Xing Li、Gang He、Gong Chen
DOI:10.1021/acs.orglett.7b00375
日期:2017.3.17
irradiation from a compact fluorescent lamp, low-intensity UV lamp, or sunlight. This protocol can be applied to the synthesis of perfluoroalkyl-substituted phenanthridines as well as effect the iodo-perfluoroalkylation of alkenes/alkynes and the C–H perfluoroalkylation of electron-rich arenes and heteroarenes. This C–H perfluoroalkylation reaction offers a unique method for site-selective labeling of oligopeptides
报道了一种使用全氟烷基碘,胺添加剂和THF溶剂进行光化学全氟烷基化反应的新方案。该协议不需要光氧化还原催化剂,并在环境温度下通过紧凑型荧光灯,低强度紫外灯或日光照射进行。该方案可用于全氟烷基取代的菲啶的合成,以及可实现烯烃/炔烃的碘全氟烷基化和富电子芳烃和杂芳烃的CH全氟烷基化。这种C–H全氟烷基化反应为色氨酸残基的寡肽位点选择性标记提供了一种独特的方法。