Polymer-supported syntheses of thiophene-containing compounds using a new type of traceless linker
作者:Abderrazak Ben-Haida、Philip Hodge
DOI:10.1039/c2ob06714e
日期:——
A new type of traceless linker is described for use in polymer-supported (PS) syntheses of thiophene-containing compounds. It is based on the cleavage of PS aryl 2-thienyl ketones by a mixture of potassium t-butoxide and water (typical mol ratio 10 : 3) in an ethereal solvent. Cleavage occurs to give the soluble thiophene-containing product. The method is used to prepare a range of eight thiophene-containing compounds including a terthiophene and a dialkylquaterthiophene. PS unsymmetrical diaryl ketones incorporating, for example, ortho-methoxyphenyl or pyrrole moieties could also serve as traceless linkers.
描述了一种新型的无痕连接剂,适用于聚合物支持(PS)硫烯类化合物的合成。该连接剂基于在醚溶剂中,使用混合的叔丁氧钾和水(典型摩尔比为10:3)切割PS芳基2-噻吩基酮的反应。切割后产生可溶性的含硫烯产品。该方法用于合成包括三噻吩和双烷基四噻吩在内的八种含硫烯化合物。PS不对称二芳基酮,比如包含邻甲氧基苯基或吡咯基部分的化合物,也可以作为无痕连接剂。