Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Palladium-catalyzed reaction of Bu 3 SnSnBu 3 with bromo-substituted thiophene or bromo-substituted thiophene-containing monomers is found to generate bithiophene or symmetric polymers containing thiophene in very good yields, respectively. ... Palladium-catalyzed reaction of Bu 3 ...