Synthesis of Fluorinated Alkyl Aryl Ethers by Palladium-Catalyzed C–O Cross-Coupling
作者:Robert Szpera、Patrick G. Isenegger、Maxime Ghosez、Natan J. W. Straathof、Rosa Cookson、David C. Blakemore、Paul Richardson、Véronique Gouverneur
DOI:10.1021/acs.orglett.0c02347
日期:2020.8.21
cross-coupling of (hetero)aryl bromides with fluorinated alcohols using the commercially available precatalyst tBuBrettPhos Pd G3 and Cs2CO3 in toluene. This Pd-catalyzed coupling features a short reaction time, excellent functional group tolerance, and compatibility with electron-rich and -poor (hetero)arenes. The method provides access to 18F-labeled trifluoroethyl ethers by cross-coupling with [
在本文中,我们报告了一种高效的方案,可使用市售的预催化剂t BuBrettPhos Pd G3和Cs 2 CO 3在甲苯中将(杂)芳基溴化物与氟化醇交叉偶联。这种钯催化的偶联反应具有反应时间短,对官能团的耐受性强以及与富电子和贫电子(杂)芳烃相容的特点。该方法通过与[ 18 F]三氟乙醇交叉偶联而获得18 F-标记的三氟乙基醚。