Synthesis and electrochemical properties of fused [3,4]furano-tetrathiafulvalenes

Abstract The synthesis of the first fused [3,4]furano-TTFs has been accomplished starting from the 4-formyl-5-diethoxymethyl-2-thioxo-1,3-dithiole. Two routes have been explored involving either the furan ring or the TTF core. In particular, the first proceeds via the new [3,4]furano-2-thioxo-1,3-dithiole.