Anodic oxidation of m-terphenyl thio-, seleno- and telluroethers: Lowered oxidation potentials due to chalcogen interaction*
نویسندگان
چکیده
The electrochemistry of m-terphenylthio-, seleno-, and telluroethers was studied using cyclic voltammetry in acetonitrile. All of the compounds studied showed irreversible oxidations. The first oxidation potentials for the thioand selenoethers are less positive than expected. This facilitation in oxidation is ascribed to through-space S···π and Se···π inter action, respectively, on removal of an electron. No evidence for a comparable effect was found for the phenyltelluro-ethers studied.
منابع مشابه
Synthesis and structure of m-terphenyl thio-, seleno-, and telluroethers.
Several routes for the synthesis of m-terphenyl thio-, seleno-, and telluroethers were investigated. m-Terphenyl iodides react with diphenyl diselenides or ditellurides (CsOH·H(2)O, DMSO, 110 °C) to give the desired compounds in 19-84% yield which significantly extends the previously reported such reactions because o-benzyne cannot be an intermediate as previously suggested. However, the most g...
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