The intermolecular formyloxylation−arylation of stilbenes occurs in the presence of diazonium salts, a photocatalyst, visible light, and DMF. The photo-Meerwein addition products are obtained in good yields up to 76%. We propose the formation of an iminium ion intermediate, which is hydrolyzed to the product.
The visible light catalyzed methylsulfoxidation of (het)aryl diazonium salts using DMSO is illustrated. This is the first example of DMSO being used as the source of the methylsulfinyl group. The procedure tolerates a wide range of functional groups on (het)aryl diazonium salts and provides aryl methyl sulfoxides in excellent yields under mild reaction conditions.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.