Abstract
Photostability is an essential design aspect for the overall performance of photocatalysts, particularly as groups introduced to adjust redox properties often constitute sites of potential reactivity. Herein, we describe a modular and flexible synthetic approach to incorporate diarylamino moieties with increased photostability that allow to efficiently tune the redox behavior of a new generation of organic acridinium photocatalysts. A series of cross-coupling reactions gave access to precursors for halogen metal exchange reactions combined with directed ortho-metalations to provide reagents that allow the formation of acridinium salts with adjustable redox properties and enhanced photostability in good yields.
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