Polyfluorinated 2,3-dihydrobenzo[b][1,4]oxathiines were synthesized starting from monosubstituted hexafluorobenzenes and 2-mercaptoethanol via aromatic nucleophilic substitution of fluorine atoms in good yields. The reactions take place under mild reaction conditions and require readily available starting materials. The possibility of structural modifications of the obtained heterocycles through interaction with phenylethylamine and potassium methylate was demonstrated.

中文翻译：

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从多氟芳烃直接合成含氟的2,3-二氢苯并[ b ] [1,4]草硫烷衍生物

由单取代的六氟苯和2-巯基乙醇经氟原子的芳族亲核取代反应合成了多氟化的2,3-二氢苯并[ b ] [1,4]氧杂蒽。反应在温和的反应条件下进行，需要容易获得的原料。通过与苯乙胺和甲醇钾的相互作用，证明了获得的杂环结构修饰的可能性。