| A | B |
|---|
| alipathic amine | N is bonded only to alkyl groups |
| aromatic amine | N is bonded to one or more aryl groups |
| heterocyclic amine | N is one of teh atoms of the ring |
| heterocyclic aromatic amine | N is one of the atoms of an aromatic ring |
| alkaloid | a basic N-containing cmpd of plant origin, many are physiologically active when administered to humans |
| quarternary ammonium ion | ion in which N is bonded to 4 Cs and bears a positive charge |
| Zwitterion | an internal salt of an amino acid |
| diazonium ion | an ArN2+ or RN2+ ion |
| Hofmann elimination | when treated with a strong base, a quartenary ammonium halide undergoes B-elimination by an E2 mech to give the less-sub alkene as the major product |
| Hofmann rule | any B-elimin. that occurs prefentially ro give the less sub alkene as the major product is said to follow the Hofmann rule |
