Dual Nickel Photocatalysis for <i>O</i>-Aryl Carbamate Synthesis from Carbon Dioxide
作者:Aleksi Sahari、Jukka Puumi、Jere K. Mannisto、Timo Repo
DOI:10.1021/acs.joc.3c00023
日期:2023.3.17
photocatalyst-mediated reduction of Ni(II) to Ni(I) and subsequent oxidative addition of the aryl halide. The physical properties of the photocatalyst were critical for promoting formation of O-aryl carbamates over various byproducts. Nine new phthalonitrile photocatalysts were synthesized, which exhibited properties that were vital to achieve high selectivity and activity.
我们报告了双镍光催化在从芳基碘化物或溴化物、胺和二氧化碳合成O-芳基氨基甲酸酯中的应用。反应在可见光下、环境二氧化碳压力下进行,并且没有化学计量的活化剂。机理分析与 Ni(I-III) 循环一致,其中活性物质由光催化剂产生。限速步骤是光催化剂介导的 Ni(II) 还原为 Ni(I) 和随后芳基卤化物的氧化加成。光催化剂的物理性质对于促进O的形成至关重要- 各种副产品上的芳基氨基甲酸酯。合成了九种新的苯二甲腈光催化剂,它们表现出对于实现高选择性和活性至关重要的特性。