A Novel Synthesis of Dithieno[2,3-b:3′,2′-d]thiophene and its Bromo Derivatives

Abstract

Two new approaches to multigram synthesis of dithieno[2,3-b:3′,2′-d]thiophene are described. Various mono-, di-, tri- and tetrabromides of dithieno[2,3-b:3′,2′-d]thiophene are prepared in good yield.

Key words

thiophenes - sulfur - heterocycles - bromine - electrophilic aromatic substitutions

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