Direct Selenation of Electron-Rich Aromatic Compounds with (Phenylseleno)dimethylsulfonium Tetrafluoroborate

Article abstract of DOI:10.1021/jo00345a010

(Phenylseleno)dimethylsulfonium tetrafluoroborate was found to be a highly reactive selenating agent for electron-rich aromatic compounds such as aromatic amines, phenols, and aromatic ethers.Reaction took place readily at 0-25 deg C to give ca. 50percent yields of substitution para to the activating substituent.In general, anilines gave better yields then anisoles or phenols.