Regiocontroled Palladium-Catalysed Direct Arylation at Carbon C2 of Benzofurans using Benzenesulfonyl Chlorides as the Coupling Partners
作者:Lenka Loukotova、Kedong Yuan、Henri Doucet
DOI:10.1002/cctc.201301077
日期:2014.3.10
products together with C2,C3 diarylation products. We found that the use of benzenesulfonylchlorides instead of aryl halides as the coupling partner allows for controlling the regioselectivity of the palladium‐catalysed arylation of benzofurans in favour of carbon C2. This method tolerates a variety of substituents on the benzenesulfonyl derivative.