Electron-deficient Heteroaromatic Ammonioamidates. Part 27. Quinazolinioamidates. Part 14. N-Amination of some Quinazoline Derivatives and some Reactions of the Resulting Quinazolinioamides.
Treatment of the quinazolines (4d) and (4e) bearing no substituents at position 4 with O-mesitylenesulphonylhydroxylamine leads to amination of N-3 and formation of the mesitylenesulphonates of the corresponding (quinazolin-3-io)amides (5a) and (5b).Upon