A green one-pot method for efficient synthesis of 2-amino-6-chloropyridine-3,5-dicarbonitrile derivatives was developed, based on stirring of various aldehydes and malononitrile with tetrachlorosilane and zinc chloride under solvent-free conditions at room temperature for 3–10 h. The effects of zinc chloride and the reaction conditions were studied. Compounds were characterized by X-ray analysis and NMR spectroscopy.
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Supplementary information file containing the results of X-ray crystallographic analysis is available from the journal website at http://link.springer.com/journal/10593.
Published in Khimiya Geterotsiklicheskikh Soedinenii, 2017, 53(5), 540–544
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Elmorsy, S.S., Sheta, A.M., Mashaly, M.M.A. et al. Tetrachlorosilane and zinc chloride as a binary reagent for the preparation of 2-amino-6-chloropyridine-3,5-dicarbonitrile derivatives. Chem Heterocycl Comp 53, 540–544 (2017). https://doi.org/10.1007/s10593-017-2089-6
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DOI: https://doi.org/10.1007/s10593-017-2089-6