Gold-Catalyzed Chemoselective Couplings of Polyfluoroarenes with Aryl Germanes and Downstream Diversification
作者:Amit Dahiya、Christoph Fricke、Franziska Schoenebeck
DOI:10.1021/jacs.0c02860
日期:2020.4.29
describes the chemoselective coupling of polyfluoroarenes with aryl germanes in the presence of aromatic C-I, C-Br, C-Cl, C-OTf and C-SiMe3 groups, as well as demonstrates the further downstream diversification to give richly functionalized and highly fluorinated polyarenes. The strategy relies on an in situ Umpolung of the FnArH, followed by selective Au(I)/Au(III)-catalyzed coupling with electron-poor or
本报告描述了在芳族 CI、C-Br、C-Cl、C-OTf 和 C-SiMe3 基团存在下多氟芳烃与芳基锗烷的化学选择性偶联,并展示了进一步的下游多样化,以提供丰富的功能化和高度氟化的聚芳烃。该策略依赖于 FnArH 的原位 Umpolung,然后选择性 Au(I)/Au(III) 催化与缺电子或富芳基锗烷偶联,即使存在具有挑战性的邻位取代基,并扩大了当前氧化金催化中与以前难以接近的缺电子/缺电子联芳基化合物的可用耦合空间。