Most are bases of varrying strength, but a few are acids
Pair of electrons on amine nitrogen enable it to participate in a large variety of reactions - as base or nucleophilke
exist as amino acids, alkaloids, and vitamins
used in the manufacture of drugs, vitamins, nylon, etc.
classified by the number of atoms of nitrogen replaced by organic radicals:
1 hydrogen replaced (RHN2) = primary amine
2 hydrogens replaced (R2NH) = secondary amine
3 hydrogens replaced (R3N) = tertiary amines
The R groups may be alkyl, aryl, or aralkyl
heterocyclic amines: amines where nitrogen forms part of a ring
amines are basis because they accept porotons from acids.