Abstract
Reactivity of some isocyanides with pentafluoropyridine under basic conditions in dry dimethyl sulfoxide was investigated. The reaction of pentafluoropyridine with toluenesulfonylmethyl isocyanide (TosMIC) was less selective, but the reactions of other isocyanides with pentafluoropyridine gave the desired 2,3,5,6-tetrafluoro-N-substituted isonicotinamide. The structures of all the compounds were confirmed by IR, 1H NMR, 19F NMR, and 13C NMR spectroscopy, X-ray crystallography as well as elemental analysis.
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The authors wish to thank Vali-e-Asr University of Rafsanjan for partially funding this work.
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Irani, M., Ranjbar-Karimi, R., Poorfreidoni, A. et al. The reactivity of isocyanides with pentafluoropyridine. Monatsh Chem 152, 1369–1375 (2021). https://doi.org/10.1007/s00706-021-02856-x
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DOI: https://doi.org/10.1007/s00706-021-02856-x