Visible-Light-Promoted (Phenylsulfonyl)methylation of Electron-Rich Heteroarenes and <i>N</i>-Arylacrylamides
作者:Fei Liu、Pixu Li
DOI:10.1021/acs.joc.6b00689
日期:2016.8.19
Visible-light-promoted radical (phenylsulfonyl)methylation reactions of electron-rich heteroarenes and N-arylacrylamides have been developed starting from bromomethyl phenyl sulfone derivatives. This method provides a mild and efficient access to various (phenylsulfonyl)methylated compounds.
Regioselective synthesis of arylsulfonyl heterocycles from bromoallyl sulfones <i>via</i> intramolecular Heck coupling reaction
作者:Deepak Yadav、Krishna、Sunil K. Sharma、Rajeev S. Menon
DOI:10.1039/d0ob01623c
日期:——
endowed with arylsulfonyl groups were prepared in two steps from 2-bromoallyl sulfones. ortho-Halosulfonamides and ortho-iodophenol reacted with 2-bromoallyl sulfones in the presence of cesium carbonate to furnish products resulting from a formal vinylic substitution reaction. Palladium-catalyzed intramolecular Heck reaction of these adducts furnished sulfonylated indoles, benzosultams and benzofurans