Annulative π-Extension (APEX) of Indoles to Pyrido[1,2-<i>a</i>]indoles Using 4-Oxo Peroxides as C4 Units
作者:Xin Wang、Chenhao Lou、Leiyang Lv、Zhiping Li
DOI:10.1021/acs.orglett.1c02062
日期:2021.8.6
3-substituted indoles to pyrido[1,2-a]indoles is developed by using 4-oxo peroxides as π-extending reagents, which are employed as versatile C4 building blocks. This transformation is initiated by Brønsted acid-mediated Hock rearrangement of the peroxyl group. Notably, the pyrido[1,2-a]indole products are obtained by elimination of the indole moiety from the corresponding dihydropyrido[1,2-a]indoles, which
通过使用 4-氧代过氧化物作为 π 扩展试剂开发了3-取代吲哚到吡啶并 [1,2- a ] 吲哚的环状 π 扩展 (APEX),用作通用 C4 构建块。这种转变是由布朗斯台德酸介导的过氧基 Hock 重排引发的。值得注意的是,吡啶并[1,2一]吲哚产物通过消除从相应的二氢吡啶并[1,2-吲哚部分的获得的一个〕吲哚,它可以在室温下被选择性地形成。