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Published TCIMAIL newest issue No.197
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Visible Light Photoredox Catalyst for Decarboxylation Reactions
No.191(December 2022)
Acr-450 (1) is a visible light photoredox catalyst with an absorption maximum around 450 nm (Figure 1) and can absorb light of longer wavelength than MesAcrMeClO4 (2), an analogue of 1. 1 can be utilized in decarboxylation reactions and sequential halogenations and the reactions proceed in high yields even when about 1 mol% of 1 is added. Furthermore, 1 is applied in the SNAr type substitution reactions and the desired products can be obtained in not inferior yields compared with conventional catalysts.
Figure 1. Absorption spectra of 1 (blue) and 2 (orange).
1 was manufactured under the permission of Shionogi Pharma Co., Ltd. (WO2022107755).
References
- 1) Catalytic Access to Alkyl Bromides, Chlorides and Iodides via Visible Light-Promoted Decarboxylative Halogenation
- 2) Nucleophilic Aromatic Substitution of Unactivated Fluoroarenes Enabled by Organic Photoredox Catalysis
Related Compounds
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