Synthesis of ß-nitro ketones from geminal bromonitroalkanes and silyl enol ethers by visible light photoredox catalysis.

Various ß-nitro ketones, including those bearing a ß-tertiary carbon, were prepared from geminal bromonitroalkanes and trimethylsilyl enol ethers of a broad range of ketones by visible light photoredox catalysis, which were then easily converted into ß-amino ketones, 1,3-amino alcohols, α,ß-unsaturated ketones, ß-cyano ketones and γ-nitro ketones.