Acridinium-Based Photocatalysts: A Sustainable Option in Photoredox Catalysis
Acridinium-Based Photocatalysts: A Sustainable Option in Photoredox Catalysis
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DOI：
10.1021/acs.joc.6b01240
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发表时间：
2016-08-19
影响因子：
3.6
通讯作者：
DiRocco, Daniel A.
中科院分区：
文献类型：
--
作者：
Joshi-Pangu, Amruta;Levesque, Francois;DiRocco, Daniel A.
可见光光氧化还原催化的出现使得较低能量辐射的生产利用成为可能，从而形成了高度选择性的反应平台。近年来，铱和钌的聚吡啶配合物由于其长激发态寿命和有用的氧化还原窗口而成为流行的光催化剂，导致了多种光氧化还原催化转化的发展。地壳中铱和钌的丰度较低，因此成本使这些催化剂不可持续，并限制了它们在工业规模制造中的应用。在此，我们报道了一系列新型吖啶盐作为铱光氧化还原催化剂的替代品，并展示了它们与普遍存在的[Ir(dF-CF3-ppy)(2)(dtbpy)](PF6)的可比性。
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).