Palladium/TY-Phos-Catalyzed Asymmetric Heck/Tsuji–Trost Reaction of <i>o</i>-Bromophenols with 1,3-Dienes
作者:Youshao Tu、Bing Xu、Qian Wang、Honglin Dong、Zhan-Ming Zhang、Junliang Zhang
DOI:10.1021/jacs.2c12752
日期:2023.3.1
are crucial building blocks in the synthesis of natural products and pharmaceutical molecules. However, their asymmetric synthesis has been a long-standing formidable challenge so far. In this work, we developed a highly enantioselective Pd/TY-Phos-catalyzed Heck/Tsuji–Trost reaction of o-bromophenols with various 1,3-dienes, allowing expedient access to chiral substituted 2,3-dihydrobenzofurans.
2,3-二氢苯并呋喃是合成天然产物和药物分子的重要组成部分。然而,迄今为止,它们的不对称合成一直是一个长期存在的艰巨挑战。在这项工作中,我们开发了邻溴酚与各种 1,3-二烯的高度对映选择性 Pd/TY-Phos 催化的 Heck/Tsuji-Trost 反应,从而可以方便地获得手性取代的 2,3-二氢苯并呋喃。该反应具有出色的区域和对映控制、高官能团耐受性和易于扩展性。更重要的是,强调了该方法作为构建光学纯天然产物 ( R )-tremetone 和 fomannoxin 的一种非常有价值的工具的论证。