Palladium catalyzed cross-coupling reactions of difunctional derivatives Bu₃SnArBr. Synthesis of regioregular poly(3-alkylthiophenes) and poly(4-alkyl 2,2'-bithiophenes) with high molecular weights

The Pd catalyzed organometallic coupling reactions of difunctional derivatives Bu3SnArBr has been used to prepare regioregular poly(3-alkylthiophenes) and poly(4-alkyl 2,2'-bithiophenes) with high molecualr weight.