Direct Selenation of Electron-Rich Aromatic Compounds with (Phenylseleno)dimethylsulfonium Tetrafluoroborate
(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.
Gassman, Paul G.,Miura, Asako,Miura, Takashi
p. 951 - 954
(2007/10/02)
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