Bismuth-Catalyzed Photoinduced Ligand-to-Metal Charge Transfer (LMCT) Hydrodecarbonylation of Aldehydes
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LF Villela, T Stoerkler, L Labbé, L Barriault
Organic Letters, 2026
ACS Publications
Herein, we disclose a visible-light, bismuth-catalyzed strategy for the hydrodecarbonylation of aliphatic aldehydes. Mechanistic studies highlight chlorine radical formation via Ligand-to-Metal Charge Transfer (LMCT) from in situ generated BiIIICl52–. After C (sp2)–H abstraction by the chlorine radical, decarbonylation followed by Hydrogen Atom Transfer (HAT) furnishes the desired products. Deuterium-labeling studies confirm that water serves as the hydrogen source. The reaction demonstrates excellent functional-group tolerance, including …
