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Issue 66, 2019
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Concise synthesis of 3-alkylthieno[3,2-b]thiophenes; building blocks for organic electronic and optoelectronic materials

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Abstract

Four step synthesis of 3-alkylthieno[3,2-b]thiophenes in the literature was reduced to two steps in good yields, through the preparation of the mono ketone, i.e. 1-(thiophene-3-ylthio)alkan-2-one, from 3-bromothiophene and ring formation reaction. This convenient method provides an easy access with good yields to the preparation of 3-alkylthieno[3,2-b]thiophenes, which are important materials for organic electronic and optoelectronic applications. SEM, AFM and contact angle (CA) analyses of their electropolymers on indium tin oxide (ITO) indicated that as the alkyl chains became longer, the polymers provide a more hydrophobic layer with CA up to 107°.

Graphical abstract: Concise synthesis of 3-alkylthieno[3,2-b]thiophenes; building blocks for organic electronic and optoelectronic materials

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Article information


Submitted
03 Oct 2019
Accepted
13 Nov 2019
First published
25 Nov 2019

This article is Open Access

RSC Adv., 2019,9, 38407-38413
Article type
Paper

Concise synthesis of 3-alkylthieno[3,2-b]thiophenes; building blocks for organic electronic and optoelectronic materials

K. T. Ilhan, S. Topal, M. S. Eroglu and T. Ozturk, RSC Adv., 2019, 9, 38407
DOI: 10.1039/C9RA08023F

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