Methods of Preparation of Amines
Ammonolysis has the disadvantage of yielding a mixture of primary , secondary and tertiary amines and also a quaternary ammonium salt .
However , primary amine is obtained as a major product by taking large excess of NH3 .
Order of reactivity of halides ‘ with amines is RI > RBr > RCI .
Aromatic amines could not be prepared since aryl halides are much less reactive towards nucleophilic substitution reactions .