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