Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate
Publication type: Journal Article
Publication date: 2010-09-02
SJR: —
CiteScore: —
Impact factor: —
ISSN: 01650513
Abstract
The formylation of thieno[3,4-b]thiophene gives a mixture of 4-formyl- and 6-formyl-thieno[3,4-b]thiophene in a ratio of 70 : 30. Lithiation followed by formylation of the resulting organolithium compounds changes this ratio to 20 : 80. The formylation of methyl thieno[3,4-b]thiophene-2-carboxylate has been shown to give the 4- and 6-substituted isomers in a 50 : 50 ratio. The structures of the substitution products were established by oxidation and desulfurization experiments and by PMR spectroscopy.
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Wynberg H., Feijen J. Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate // Recueil des Travaux Chimiques des Pays-Bas. 2010. Vol. 89. No. 1. pp. 77-87.
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Wynberg H., Feijen J. Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate // Recueil des Travaux Chimiques des Pays-Bas. 2010. Vol. 89. No. 1. pp. 77-87.
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RIS
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TY - JOUR
DO - 10.1002/recl.19700890112
UR - https://doi.org/10.1002/recl.19700890112
TI - Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate
T2 - Recueil des Travaux Chimiques des Pays-Bas
AU - Wynberg, Hans
AU - Feijen, J.
PY - 2010
DA - 2010/09/02
PB - Wiley
SP - 77-87
IS - 1
VL - 89
SN - 0165-0513
ER -
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@article{2010_Wynberg,
author = {Hans Wynberg and J. Feijen},
title = {Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate},
journal = {Recueil des Travaux Chimiques des Pays-Bas},
year = {2010},
volume = {89},
publisher = {Wiley},
month = {sep},
url = {https://doi.org/10.1002/recl.19700890112},
number = {1},
pages = {77--87},
doi = {10.1002/recl.19700890112}
}
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MLA
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Wynberg, Hans, and J. Feijen. “Some substitution reactions of thieno[3,4-b]thiophene and methyl thieno[3;4-b]thiophene-2-carboxylate.” Recueil des Travaux Chimiques des Pays-Bas, vol. 89, no. 1, Sep. 2010, pp. 77-87. https://doi.org/10.1002/recl.19700890112.