Acridinium-Based Photocatalysts: A Sustainable Option in Photoredox Catalysis,The Journal of Organic Chemistry

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Acridinium-Based Photocatalysts: A Sustainable Option in Photoredox Catalysis
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2016-07-25 00:00:00 , DOI: 10.1021/acs.joc.6b01240
Amruta Joshi-Pangu ₁ , François Lévesque ₁ , Hudson G. Roth ₂ , Steven F. Oliver ₁ , Louis-Charles Campeau ₁ , David Nicewicz ₂ , Daniel A. DiRocco ₁

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The emergence of visible light photoredox catalysis has enabled the productive use of lower energy radiation, leading to highly selective reaction platforms. Polypyridyl complexes of iridium and ruthenium have served as popular photocatalysts in recent years due to their long excited state lifetimes and useful redox windows, leading to the development of diverse photoredox-catalyzed transformations. The low abundances of Ir and Ru in the earth’s crust and, hence, cost make these catalysts nonsustainable and have limited their application in industrial-scale manufacturing. Herein, we report a series of novel acridinium salts as alternatives to iridium photoredox catalysts and show their comparability to the ubiquitous [Ir(dF-CF₃-ppy)₂(dtbpy)](PF₆).

中文翻译：

cri啶基光催化剂：光氧化还原催化的可持续选择

可见光光氧化还原催化的出现已使人们能够有效利用较低能量的辐射，从而形成高度选择性的反应平台。铱和钌的聚吡啶基络合物由于其长的激发态寿命和有用的氧化还原窗口，近年来已成为流行的光催化剂，从而导致了多种光氧化还原催化转化的发展。地壳中Ir和Ru的丰度低，因此成本高昂，使这些催化剂不可持续，并限制了其在工业规模生产中的应用。在这里，我们报道了一系列新型的a啶盐作为铱光氧化还原催化剂的替代品，并显示了它们与普遍存在的[Ir（dF-CF ₃ -ppy）₂（dtbpy）]（PF ₆）的可比性。

更新日期：2016-07-25

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