Abstract
The reactions of 2-cyanomethylbenzimidazole with polyfluorobenzoyl chlorides afforded 2-(1,3-dihydrobenzimidazol-2-ylidene)-3-oxo-3-polyfluorophenylpropionitriles. Refluxing of the latter compounds in acetonitrile in the presence of DBU or in dimethylformamide in the presence of amines gave rise to fluorine-containing derivatives of benzimidazo[1,2-a]quinolone.
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Lipunova, G.N., Nosova, E.V., Vasil"eva, P.V. et al. Fluorinated benzimidazo[1,2-a]quinolones. Russian Chemical Bulletin 52, 457–460 (2003). https://doi.org/10.1023/A:1023487622561
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DOI: https://doi.org/10.1023/A:1023487622561