Rapid Access to Bi- and Tri-Functionalized Dibenzofurans and their Application in Selective Suzuki-Miyaura Cross Coupling Reactions
作者:Caroline Wern、Christian Ehrenreich、Dominik Joosten、Thorsten vom Stein、Herwig Buchholz、Burkhard König
DOI:10.1002/ejoc.201801286
日期:2018.11.8
Syntheses of 1,2-, 1,3-, 1,4-, 1,8-, 2,4-, 3,4-, 4,8-, 1,2,4-, 1,2,8- and 1,3,4-functionalized dibenzofurans in few steps with good to excellent yields starting from dibenzofuran-1-ol or -4-ol are presented. These rapidly accessible bi- or tri-functionalized building blocks are of great interest for the synthesis of bioactive substances or functional material development. Furthermore, for intermediates
1,2-, 1,3-, 1,4-, 1,8-, 2,4-, 3,4-, 4,8-, 1,2,4-, 1,2,8-的合成和 1,3,4-官能化的二苯并呋喃在几个步骤中以从二苯并呋喃-1-醇或-4-醇开始的良好到优异的产率呈现。这些可快速获取的双或三功能化构建块对于生物活性物质的合成或功能材料的开发具有重要意义。此外,对于包含溴和三氟甲磺酸酯部分的中间体,描述了通过 Suzuki-Miyaura 反应 (SMR) 的选择性单取代。