All N-Arylcyanothioformamide 27ax used herein were prepared according to our published procedure form various substituted isothiocyanates and potassium cyanide (Scheme 2a) [26 (link)]. These reactants were partially characterized by standard 1D NMR spectroscopy (1H and 13C) and the obtained spectral data matched those reported earlier [32 (link)].
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