Eosin Y-catalyzed, visible-light-promoted carbophosphinylation of allylic alcohols <i>via</i> a radical neophyl rearrangement
作者:Yao Yin、Wei-Zhi Weng、Jian-Guo Sun、Bo Zhang
DOI:10.1039/c8ob00231b
日期:——
phosphinylation of allylic alcohols with concomitant 1,2-aryl migration is described. This transformation proceeds smoothly under metal-free and mild conditions by using an inexpensive organic dye, eosin Y, as the photocatalyst, affording various β-aryl-γ-ketophosphine oxides in moderate to good yields. Mechanistic studies suggested that the 1,2-aryl migration proceeded through a radical (neophyl) rearrangement
描述了具有1,2-芳基迁移的烯丙基醇的可见光促进的次膦酸酯化。通过使用廉价的有机染料曙红Y作为光催化剂,可以在无金属和温和条件下平稳地进行转化,从而以中等至良好的产率提供各种β-芳基-γ-酮膦氧化物。机理研究表明1,2-芳基迁移通过自由基(新叶)重排进行。