Preparation of extended di(4-pyridyl)thiophene oligomers

Article abstract of DOI:10.1016/0040-4020(95)00111-K

Different methods for the coupling of 2-(4-pyridyl)thiophene to α-dibrominated thiophene oligomers and their efficiency to produce a homologous series of extended di(4-pyridyl)thiophene oligomers have been studied. The coupling was found to be most efficient with the organozinc derivative of 2-(4-pyridyl)thiophene, using a Pd(dppf) complex as the catalyst in the coupling reaction. The resulting compounds are promising new models for trans-membrane molecular conductors.