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Aminoacridinium Photoredox Catalysts

Organocatalysts with Adjustable Photoredox-Properties

Ascensus, in collaboration with Solvias is expanding its catalyst and ligand portfolio with organic aminoacridinium photoredox catalysts (Figure 1). These catalysts for visible light photoredox chemistry are characterized by their fine-tuned redox potential comparable to well-established Ir-polypyridyl systems. This enables efficient organocatalytic photoredox reactions for traditionally transition-metal catalyzed processes or for new catalytic applications.


Fig. 1. Organic aminoacridinium photoredox catalysts

The combination of amino-functionalities as in the rhodamines and the privileged catalytic performance of mesityl-substituted acridinium salts results in unique photochemical and electrochemical properties ideally suited for milder catalytic applications (E1/2(P*/P) 1.25 V), that are also compatible with complex reaction mixtures and sensitive substrates [1-2].

The catalysts have shown high activity in several photoredox reactions such as deuterations, fluorinations or dual catalytic decarboxylative C-C cross couplings with nickel [1-3].



  1.       Angew. Chem. Int. Ed. 2018, 57, 2436
  2.       Synthesis 2019, 51, 4359
  3.       ACS Catal. 2020, 10, 1, 210


Featured Products

07-8225 3,6-Bis(dimethylamino)-9-mesityl-10-methylacridin-10-ium bromide, min. 95% (2180894-90-8)

07-8230 3,6-Bis(dimethylamino)-9-(2,6-dimethylphenyl)-10-methylacridin-10-ium bromide, min. 95% (2380163-04-0)


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