Abstract
4-(2-Hydroxyaryl)-1,2,3-selenadiazoles obtained by the action of selenium(IV) oxide on o-hydroxyacetophenone semicarbazones are readily converted into the corresponding potassium benzofuran- 2-selenolates via reaction with potassium carbonate. Oxidation of potassium benzofuran-2-selenolates with iodine gives bis(2-benzofuranyl) diselenides in good yields.
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