Enantioselective α-Arylation of Ketones via a Novel Cu(I)–Bis(phosphine) Dioxide Catalytic System
作者:Margarita Escudero-Casao、Giulia Licini、Manuel Orlandi
DOI:10.1021/jacs.0c13236
日期:2021.3.10
A novel catalytic system based on copper(I) and chiral bis(phosphine) dioxides is described. This allows the arylation of silyl enol ethers to access enolizable α-arylated ketones in good yields and enantiomeric excess up to 95%. Noncyclic ketones are amenable substrates with this method, which complements other approaches based on palladium catalysis. Optimization of the ligand structure is accomplished
描述了一种基于铜(I)和手性双(膦)二氧化物的新型催化体系。这使得硅基烯醇醚的芳基化能够以良好的产率和高达 95% 的对映体过量获得可烯醇化的 α-芳基化酮。非环酮是该方法的合适底物,它补充了基于钯催化的其他方法。配体结构的优化是通过相关分析驱动的合理设计来完成的。还评估了初步的机制假设,以确定手性双(膦)二氧化物的作用。