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Molecules 2011, 16(9), 7706-7714; doi:10.3390/molecules16097706
Article

Synthesis and Chemical Characterisation of Some New Diheteroaryl Thienothiophene Derivatives

* ,  and
Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
* Author to whom correspondence should be addressed.
Received: 10 June 2011 / Revised: 15 August 2011 / Accepted: 5 September 2011 / Published: 8 September 2011
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Abstract

Treatment of 1-(5-acetyl-3,4-dimethythieno[2,3-b]thiophene-2yl)ethanone (1) with dimethylformamide dimethyl acetal afforded enaminone derivative 2, which reacted with amino derivatives to give the corresponding bis-pyrimidine, bis-pyrazole, bis-triazolo-pyrimidine and bis-benzoimidazopyrimidine derivatives.
Keywords: bis-heterocycles; DMF-DMA; bis-pyrimidine; bis-pyrazole; bis-triazolo pyrimidine bis-heterocycles; DMF-DMA; bis-pyrimidine; bis-pyrazole; bis-triazolo pyrimidine
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Mabkhot, Y.N.; Al-Majid, A.M.; Alamary, A.S. Synthesis and Chemical Characterisation of Some New Diheteroaryl Thienothiophene Derivatives. Molecules 2011, 16, 7706-7714.

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