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Facile and convenient synthesis of new thieno[2,3-b]-thiophene derivatives

Facile and convenient synthesis of new thieno[2,3-b]-thiophene derivatives

Molecules 15(12): 9418-9426

A facile and convenient synthesis of bis(2-(1H-benzo[d]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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Accession: 053186170

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PMID: 21173726

DOI: 10.3390/molecules15129418

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