Selective oxidation of thiacalix[4]arenes to the sulfinyl and sulfonyl counterparts and their complexation abilities toward metal ions as studied by solvent extraction

Selective oxidation of thiacalix[4]arene

Selective oxidation of thiacalix[4]arenes to the sulfinyl- and sulfonylcalix[4]arenes and their coordination ability to metal ions

✍ Nobuhiko Iki; Hitoshi Kumagai; Naoya Morohashi; Kohki Ejima; Mitsuharu Hasegawa; 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 248 KB

Thiacalix[4]arenes, in which the four methylene bridges of calix[4]arenes are replaced by sulfide linkages, were selectively oxidized to sulfinyl-or sulfonylcalix[4]arene under mild conditions with control of the stoichiometry of the oxidant. Solvent extraction of the transition and alkaline earth m