Abstract

By reaction of selenium(IV) oxide with 5-alkoxy-2-hydroxyacetophenone semicarbazones4-(5-alkoxy-2-hydroxyphenyl)-1'2'3-selenadiazoles were prepared. The latter readily decomposed whentreated with potassium carbonate yielding 5-alkoxybenzo[b]furan-2-selenolates. The selenolates obtainedunderwent alkylation effected by monochloroacetamide, were arylated by 2'4-dinitrochlorobenzene. Theoxidation of selenolates with iodine furnished bis(5-alkoxybenzo[b]furan-2-yl) diselenides.

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