Facile one-pot syntheses of amidines and enamines were achieved by trapping carbocation intermediates that were formed by Beckmann rearrangement of oximes with amines and carbon nucleophiles, respectively, under mild conditions.
Amidines. Part 30. Influence of substitution at amino nitrogen atom on pK<sub>a</sub>values of N<sup>2</sup>-phenylacetamidines and N<sup>2</sup>-phenylformamidines