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Beilstein-Institut, Beilstein Journal of Organic Chemistry, (8), p. 683-692, 2012

DOI: 10.3762/bjoc.8.76

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Thiophene-based donor–acceptor co-oligomers by copper-catalyzed 1,3-dipolar cycloaddition

Journal article published in 2012 by Stefanie Potratz, Amaresh Mishra ORCID, Peter Bäuerle
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Herein we present a three-component one-pot procedure to synthesize co-oligomers of a donor–acceptor–donor type, in which thiophene moieties work as donor and 1,2,3-triazoles as acceptor units. In this respect, terminally ethynylated (oligo)thiophenes were coupled to halogenated (oligo)thiophenes in the presence of sodium azide and a copper catalyst. Optoelectronic properties of various thiophene-1,2,3-triazole co-oligomers were investigated by UV–vis spectroscopy and cyclic voltammetry. Several co-oligomers were electropolymerized to the corresponding conjugated polymers.