Synthesis of Selenated Unsymmetrical Analogs of BEDT-TTF, BEDO-TTF and DMET
作者:Laurent Binet、Jean Marc Fabre、Jan Becher
DOI:10.1055/s-1997-1494
日期:1997.1
An improved synthesis of EDSEDT-TTF 4 and EDSEDO-TTF 5 from appropriate cross-coupling reactions involving 4,5-bis(2-cyanoethylthio)-1,3-dithiol-2-one (9) and 4,5-bis(2-cyanoethylseleno)-1,3-dithiol-2-one (11) as key intermediates is described. Moreover, a Wittig-type preparation of new selenated derivatives 6 and 7 of DMET molecule from the useful new precursor [4,5-bis(2-cyaoethylseleno)-1,3-dithiol-2-yl]triphenylphosphonium tetrafluoroborate (17) is presented.
Ethylenedithio(ethylenedioxo)diselenadithiafulvalene (TOST) and ethylenediseleno(ethylenedioxo)tetrathiafulvalene (SO): new unsymmetrical π-donors containing three elements in Group 16 (O, S, and Se)
The synthesis and characterization of newunsymmetrical bis(ethylenedithio)tetrathiafulvalene (ET) analogues ethylenedithio(ethylenedioxo)diselenadithiafulvalene (TOST) and ethyl enediseleno(ethylenedioxo)tetrathiafulvalene (SO) that contain three elements in group 16(O, S and Se) and their cation radical salts are reported.