One‐Carbon Ring Expansion of Indoles and Pyrroles: A Straightforward Access to 3‐Fluorinated Quinolines and Pyridines
作者:Huaixuan Guo、Shiqin Qiu、Peng Xu
DOI:10.1002/anie.202317104
日期:2024.1.25
1,1-Dibromoalkanes as bromocarbene sources make one-carbon ring expansion of indoles and pyrroles facile, allowing for direct access to structurally diverse azines, especially the pharmaceutically important 3-fluorinated quinolines and pyridines. This straightforward protocol features bench-stable reagents, a broad range of substrates, and good compatibility with various functional groups.
1,1-二溴烷烃作为溴卡宾源,使得吲哚和吡咯的一碳环扩张变得容易,允许直接获得结构多样的吖嗪,特别是药学上重要的3-氟化喹啉和吡啶。这种简单的实验方案具有工作台稳定的试剂、广泛的底物以及与各种官能团良好的兼容性。