AN EFFICIENT SYNTHESIS OF NEW LONG-CHAIN SUBSTITUTED TETRATHIAFULVALENE DERIVATIVES INVOLVING 2 TETRATHIAFULVALENE MOIETIES

Derivatives involving two tetrathiafulvalene moieties linked by an alk ylenedithio bridge and long-chain substituents were synthesized by the condensation of enedithiobis(1,3-dithiole-2-triphenyl-phosphonium) pe rchlorates and 2-ethylseleno-4-heptadecyl-1,3-dithiolium tetrafluorobo rate in the presence of triethylamine. The derivative involving a hexa decylethylenedithio substituent was synthesized by the coupling of the corresponding 1,3-dithiol-2-one and 1,3-dithiole-2-thione derivatives in the presence of triethyl phosphite.