Photocatalysis in Aqueous Micellar Media Enables Divergent C–H Arylation and <i>N</i>-Dealkylation of Benzamides
作者:Martyna Cybularczyk-Cecotka、Jędrzej Predygier、Stefano Crespi、Joanna Szczepanik、Maciej Giedyk
DOI:10.1021/acscatal.2c00468
日期:2022.3.18
Photocatalysis in aqueous micellar media has recently opened wide avenues to activate strong carbon–halide bonds. So far, however, it has mainly explored strongly reducing conditions, restricting the available chemical space to radical or anionic reactivity. Here, we demonstrate a controllable, photocatalytic strategy that channels the reaction of chlorinated benzamides via either a radical or a cationic
最近,水性胶束介质中的光催化为激活强碳卤键开辟了广阔的途径。然而,到目前为止,它主要探索了强烈的还原条件,将可用的化学空间限制为自由基或阴离子反应性。在这里,我们展示了一种可控的光催化策略,该策略通过自由基或阳离子途径引导氯化苯甲酰胺的反应,从而实现化学发散的 C-H 芳基化或N-脱烷基化。该催化系统在温和的条件下运行,亚甲基蓝作为光催化剂,蓝色 LED 作为光源。介绍了决定底物反应性、选择性和初步机理研究的因素。