Thieno[3,4-b]-1,4-oxathiane: an unsymmetrical sulfur analogue of 3,4-ethylenedioxythiophene (EDOT) as a building block for linear pi-conjugated systems.
[reaction: see text] An unsymmetrical analogue of 3,4-ethylenedioxythiophene (EDOT) has been synthesized by transetherification of 3,4-dimethoxythiophene. Electropolymerization leads to a stable electroactive polymer with electrochemical and electronic properties intermediate between those of the two symmetrical parent polymers poly(EDOT) and poly(3,4-ethylenedithiathiophene). Experimental work shows that the 2- and 5-positions possess a different reactivity, thus opening the possibility of synthesizing regioregular oligomers or polymers.
Blanchard
Philippe
P
Ingénierie Moléculaire et Matériaux Organiques, UMR-CNRS 6501, 2 Bd Lavoisier, 49045 Angers, France. Philippe.Blanchard@univ-angers.fr
Cappon
Alexandre
A
Levillain
Eric
E
Nicolas
Yohann
Y
Frère
Pierre
P
Roncali
Jean
J