A novel and expedient approach to New Thiazoles, Thiazolo[3,2-a]pyridines, Dihydrothiophenes, and Hydrazones incorporating Thieno[2,3-b]thiophene moiety

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Abstract

This paper reports details about the synthesis of a series of novel functionalized symmetrical bis-heterocyclic compounds containing a thieno[2,3-b]thiophene motif. Bis-thiazole derivatives 2, 3a-c and thiazolo[3,2-a]pyridine derivatives 4a-c are achieved. The hitherto unknown dihydrothiophene derivatives 6a-d via bis-pyridimium salt 5 are obtained. Additionally, the novel hydrazonothieno[2,3-b]thiophene derivatives 10a-c areobtained via bis-tosylacetylthieno[2,3-b]thiophene derivative 9. All compounds arecharacterized by 1H-, 13C-NMR, GCMS, IR, and UV-vis spectrometry. These compounds represent a new class of sulfur and nitrogen containing heterocycles that should also be of interest as new materials. © 2012 by the authors.

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Mabkhot, Y. N., Barakat, A., Al-Majid, A. M., Alamary, A. S., & Al-Nahary, T. T. (2012). A novel and expedient approach to New Thiazoles, Thiazolo[3,2-a]pyridines, Dihydrothiophenes, and Hydrazones incorporating Thieno[2,3-b]thiophene moiety. International Journal of Molecular Sciences, 13(4), 5035–5047. https://doi.org/10.3390/ijms13045035

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