Facile and convenient synthesis of new thieno[2,3-b]-thiophene derivatives |
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| Authors: | Mabkhot Yahia Nasser Kheder Nabila abd Elshafy Al-Majid Abdullah Mohammad |
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| Institution: | Department of Chemistry, Faculty of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia. yahia@ksu.edu.sa |
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| Abstract: | A facile and convenient synthesis of bis(2-(1H-benzod]imidazol-2(3H)-ylidene)-3-oxopropanenitrile), bis((3-amino-5-(methylthio)-1H-pyrazol-4-yl)methanone) and bis(2-thioxo-1,2-dihydropyrimidine-5-carbonitrile) derivatives incorporating a thieno- 2,3-b]thiophene moiety via versatile, readily accessible diethyl 3,4-dimethylthieno-2,3-b]thiophene-2,5-dicarboxylate is described. |
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