Selective oxidation of thiacalix[4]arene
β
Nobuhiko Iki; Hitoshi Kumagai; Naoya Morohashi; Kohki Ejima; Mitsuharu Hasegawa;
π
Article
π
1998
π
Elsevier Science
π
French
β 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