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
已有报道的几种方法可以接触到α-芳基硒烯,而β-芳基硒烯的合成仍然非常具有挑战性。在此,据报道钯催化苯磺酰氯与硒吩的偶联,从而提供区域特异性的β-芳基硒吩。该反应在容易获得的催化剂,碱和底物的条件下进行,并能耐受苯和硒基部分上的各种取代基。由于可以实现芳基在所需位置的安装,这种转变使得可以在药物和材料化学中进行潜在应用的聚芳基硒烯的程序化合成。