Synthesis and polymerization of 3,3″-di[(S)-(+)-2-methylbutyl]-2,2′:5′,2″-terthiophene: a new monomer precursor to chiral regioregular poly(thiophene)

3,3″-Di[(S)-(+)-2-methylbutyl]-2,2′:5′,2″-terthiophene, having two equivalent reactive positions, allows the synthesis of the corresponding optically active poly(thiophene) with regioregular enchainment by using an aspecific oxidative polymerization method.