作者:Tao Zheng、Zhiqun Li、Yuling Luo、Jingjie Zhang、Jun Xu
DOI:10.1016/j.tet.2023.133274
日期:2023.3
3-halooxidation of indoles using DMSO as the oxygen source and NXS (X = Br, Cl) the halo source. This protocol features broad substrate scope and good to excellent yields, thus rendering it as a highly versatile, straightforward, and atom-economical alternative prior to the previously reported methods, which possess their capability to undergo the SN1 substitution of a highly reactive electrophilic o-azaxylylene
在这里,我们开发了一种直接有效的协议,用于使用 DMSO 作为氧源和 NXS(X = Br,Cl)作为晕源对吲哚进行 3-卤氧化。该协议具有广泛的底物范围和优良的产量,因此使其成为一种高度通用、直接且原子经济的替代方案,优于先前报道的方法,这些方法具有进行高反应性亲电子物质的 S N 1 取代的能力o -azaxylene中间体生成3, 3-二取代羟吲哚。