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

✍ Scribed by Nobuhiko Iki; Hitoshi Kumagai; Naoya Morohashi; Kohki Ejima; Mitsuharu Hasegawa; Setsuko Miyanari; Sotaro Miyano

Book ID: 104259951
Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 248 KB
Volume: 39
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(98)01645-1

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✦ Synopsis

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 metal ions with these hosts showed that the metal binding ability was governed by the oxidation state of the sulfur functionalities.

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