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- W2040887875 abstract "A newmethod of synthesis of 2-(1,2-diferrocenylvinyl)benz- and azabenzimidazoles(3a-f), (4a-f) and 1’H,3’H(Me)-spiro-[(aza)benzimidazoline-2’,3-(1,2-diferrocenylcyclopropenes)](5a-f) via reactions of diferrocenyl(methylsulfanyl)cyclopropenyliumiodide (1) with aromatic o-diamines(2a-f) in the presence of Et3N (80°C - 82°C) is described. Thestructures of the resultant compounds are established using IR, 1Hand 13C NMR spectroscopy, mass spectrometry and elemental analysis.The structure of one compound, cis-2-(1,2-diferrocenylvinyl)-1-methylbenzimidazole(3b), is confirmed by X-ray diffraction analysis. The electrochemicalproperties of compounds 3a, 3b, 3d and 5f are investigated using cyclic square wavevoltammetry. Two electrochemical processes (I-II), attributed to oxidation ofthe ferrocene moieties, and the values of E0’(I), E0’(II), DE0’(II-I) and comporportionation constant Kcom are reported. The bioactivities of seven compounds 3a,3c-f, 5d, 5f are evaluated. Compound 5f is the most active compound with amodest cytotoxic activity against six human cancer cell lines: U-251 (glioma),PC-3 (prostate cancer), K-562 (leukemia), HCT-15 (colon cancer), MCF-7 (breastcancer) and SKLU-1 (lung cancer)." @default.
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- W2040887875 date "2014-01-01" @default.
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- W2040887875 title "Synthesis, Electrochemistry and Antitumor Activity of 1’H, 3’H(Me)-spiro-[(aza)benzimidazoline-2’, 3-(1,2-diferrocenylcyclopropenes)], 2-(1,2-Diferrocenylvinyl)benz- and Azabenzimidazoles" @default.
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- W2040887875 doi "https://doi.org/10.4236/ojsta.2014.34007" @default.
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