Synthesis of [1]Benzothieno[2,3-<i>b</i>][1]benzothiophenes from 3-Arylbenzo[<i>b</i>]thiophenes through Iodine-Mediated Sulfur Insertion Reaction
作者:Kazuki Ito、Shuta Sakai、Kazuhiro Yoshida
DOI:10.1021/acs.joc.3c01618
日期:2023.10.20
The reaction of 3-arylbenzo[b]thiophenes and elemental sulfur to obtain [1]benzothieno[2,3-b][1]benzothiophenes (BTBTs) is reported. The addition of molecular iodine is essential for the reaction. In previous reactions that used 1,1-diarylethylenes as the starting material, side products that were difficult to separate were generated. The present reaction does not produce such side products and is
报道了3-芳基苯并[ b ]噻吩与元素硫反应得到[1]苯并噻吩并[2,3- b ][1]苯并噻吩(BTBT)。分子碘的添加对于该反应至关重要。在以前使用1,1-二芳基乙烯作为起始原料的反应中,会产生难以分离的副产物。本反应不产生此类副产物,因此有利于以高收率和纯度获得BTBT。