Visible‐Light Photoredox‐Catalyzed α‐Allylation of α‐Bromocarbonyl Compounds Using Allyltrimethylsilane

The development of a greener allylation reagent for α‐allylation of carbonyl compounds is of great necessity. Here we present allyltrimethylsilane as a novel allylation reagent in the photoredox‐catalyzed α‐allylation of carbonyl compounds such as ketones, esters, and amides. The reaction process shows good functional group tolerance and generates a good yield of the product. The reaction mechanism is a radical‐mediated reaction by photo‐induced single electron transfer.