Abstract A versatile synthetic route involving the use of organotin compounds has been applied for the preparation of functionalized oligothiophenes. Substituted bithiophenes have been synthesized via the coupling reaction of 2-bromothiophenes with 3- trimethylstannylthiophene. The latter reagent couples with bromoaromatics, bromoheteroaromatics and 2.5-dibromothiophenes to give the corresponding 3- ...