Palladium-Catalyzed Dehydrohalogenative Polycondensation of 2-Bromo-3-hexylthiophene: An Efficient Approach to Head-to-Tail Poly(3-hexylthiophene)

摘要

Dehydrohalogenative polycondensation of 2-bromo-3-hexylthiophene was successful with Herrmann’s catalyst and tris(2-dimethylaminophenyl)phosphine as catalyst precursors, giving head-to-tail poly(3-hexylthiophene) (HT-P3HT) with high molecular weight (M_n = 30 600, M_w/M_n = 1.60) and high regioregularity (98%) in almost quantitative yield (99%).