A Straightforward Synthesis of Polythiophene-fused-3-sulfolenes from Methyl 3-Hydroxy-4,6-dihydrothieno[3,4-b]thiophene-2-carboxylate |
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Authors: | Hsi-Hwa Tso Honru Tsay |
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Institution: | Institute of Chemistry, Academia Sinica, Taipei, Taiwan |
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Abstract: | A straightforward synthesis of substituted polythiophene-fused-3-sulfolenes from the readily prepared methyl 3-hydroxy-4,6-dihydrothieno3,4-b]thiophene-2-carboxylate will be presented. Upon thermolysis in the presence of N-phenylmaleimide, these new substrates serve as precursors of reactive polythiophene o-quinodimethanes to give the corresponding Diels-Alder adducts in high yields. |
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