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Wiley-VCH Verlag, ChemInform, 31(46), p. no-no, 2015

DOI: 10.1002/chin.201531154

Elsevier, Heterocycles, 2(91), p. 313

DOI: 10.3987/com-14-13145

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Synthesis and Photophysical Properties of Some Dithienylbenzo[c]thiophene Derivatives

This paper is available in a repository.
This paper is available in a repository.

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Abstract

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.