An easy preparation of pyridinium N-heteroarylaminides

A synthesis of substituted pyridinium N-heteroarylaminides, e.g., I, is reported. Heteroaryl chlorides underwent nucleophilic substitution with N-aminopyridinium iodide to give the corresponding substituted pyridinium N-heteroarylaminides in good yields. [on SciFinder(R)]Differently substituted pyridinium N-heteroarylaminides have been prepared in one step with good yield from N-aminopyridinium iodide and the corresponding heteroaryl chloride.The authors wish to thank the Ministerio de Ciencia y Tecnología (projects CICYT-2FD97-1248 and BQU2001-1508) for financial support, and the Ministerio de Educación y Cultura for a studenship (M.J.R.)