Unprecedented Access to β-Arylated Selenophenes through Palladium-Catalysed Direct Arylation
作者:Aymen Skhiri、Ridha Ben Salem、Jean-François Soulé、Henri Doucet
DOI:10.1002/chem.201700202
日期:2017.2.24
reported methods allow access to α‐arylated selenophenes, whereas the synthesis of β‐arylated selenophenes remains very challenging. Here, the Pd‐catalysed coupling of benzenesulfonyl chlorides with selenophenes affording regiospecific β‐arylated selenophenes is reported. The reaction proceeds with easily accessible catalyst, base and substrates, and tolerates a variety of substituents both on the benzene