Bis(vinylenedithio)tetrathiafulvalene analogues of BEDT-TTF

This review aims to give an overview of the current status of our research on the synthesis of pi-electron donor bis(ethylenedithio) tetrathiafulvalene (BEDT-TTF, ET) analogues prepared from 1,8-diketones via a ring forming reaction. The new synthesized pi-electron donors have vinyl moieties producing extended pi-electron delocalization over the substituent phenyl rings at the peripheries.