胺化
亲核细胞
化学
接受者
芳基
催化作用
催化循环
猝灭(荧光)
镍
光化学
产量(工程)
有机合成
偶联反应
组合化学
荧光
有机化学
材料科学
物理
冶金
凝聚态物理
烷基
量子力学
作者
Tommaso Gandini,Luigi Dolcini,Lorenzo Di Leo,Matthieu Fornara,Alberto Bossi,Marta Penconi,Alberto Dal Corso,Cesare Gennari,Luca Pignataro
出处
期刊:Chemcatchem
[Wiley]
日期:2022-11-11
卷期号:14 (23)
被引量:4
标识
DOI:10.1002/cctc.202200990
摘要
Abstract Herein we report a study on the use of donor‐acceptor cyanoarenes as photocatalysts for C−O and C−N coupling reactions promoted by nickel. We found that some of these stable and readily available organic compounds can replace the precious metal photocatalysts originally employed in these methodologies. After reaction optimization, the application scope of the best performing dyes was investigated and found to cover several nucleophiles (alcohols and amines) and aryl bromides. Control experiments, fluorescence quenching studies and examination of yield trends suggest that both etherification and amination probably proceed via a dark Ni I /Ni III ‐catalytic cycle initiated and sustained by a photoredox cycle involving the organic photocatalysts.
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