The Synthesis of Novel Oligomer 4,8-Di(<i>4-hexyl-2-thienyl</i>)-2λ<sup>4</sup>δ<sup>2</sup>-Benzo[1,2-c;4,5-c’]bis[1,2,5]-Thiadiazole

Abstract

Heterocyclic oligomer based on BBT bearing solubilizing side chains have been synthesized in high yields over six steps from readily available starting materials. This approach offers a much milder, shorter, and more efficient route to BBT derivatives than current methods. This unit can then be used in the synthesis of low bandgap materials via palladium-catalyzed coupling reactions.