フルオロアレーンとジブロモアレーンの直接的アリール化重縮合

抄録

Here, we demonstrate that the direct arylation polycondensation of fluoroarenes with dibromoarenes proceeds efficiently under the conditions that we have previously reported for the synthesis of other polymers. The polycondensation of 1.2.4.5-tetrafluorobenzene, 1,2,3,5-tetrafluorobenzene or 2,2′,3,3′,5,5′,6,6′-octafluorobiphenyl with 5,5′-dibromo-3,3′-dihexyl-2,2′-bitiophene, 3,6-dibromo-N-octylcarbazole or 4,4′-dibromo-N-(2-ethylhexyl)diphenylamine in the presence of palladium acetate (2.5 mol%), di-tert-butylmethylphosphonium tetrafluoroborate (5.0 mol%), acetic acid (2 eq.), and potassium carbonate (6 eq.) in toluene (0.5 mL) at 120°C for 24 h gave the corresponding alternating polymers.