Wiley-VCH Verlag, ChemInform, 31(46), p. no-no, 2015
Elsevier, Heterocycles, 2(91), p. 313
DOI: 10.3987/com-14-13145
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The synthesis of a new fullerene -dithienylbenzo[c]thiophene (DTBT) -fullerene triad has been reported. The synthetic scheme provides the synthesis of DTBT unit, a Sonogashira reaction to introduce two acetylenic groups and the coupling with fullerene. The product showed an absorption at 485 nm and a fluorescence band at 575 nm. Treatment of 5-(3-(5-ethynyl-2-thienyl)benzo-[c]-1-thienyl)thiophene-2-carbaldehyde with LHDMS gave a dimeric product that showed an absorption at 475 nm and a fluorescence band at 595 nm. Furthermore, 5-(3-(2-thienyl)benzo[c]-1-thienyl)thiophene-2-carbaldehyde was treated with hydrazine to give the corresponding adduct that showed an absorption at 480 nm and a fluorescence band at 605 nm.