Amines constitute an important class of organic compounds derived by replacing one or more hydrogen atoms of ammonia molecule by alkyl/aryl group(s).
In nature, they occur among proteins, vitamins, alkaloids and hormones.
Amines have lot of importance in our day to day life.
For example:-
Polymers, dyestuffs and drugs contain amines.
Two biologically active compounds, namely adrenaline and ephedrine, both containing secondary amino group, are used to increase blood pressure.
Novocain, a synthetic amino compound, is used as an anaesthetic in dentistry.
Benadryl, a well-known antihistaminic drug also contains tertiary amino group.
Quaternary ammonium salts are used as surfactants. Diazonium salts are intermediates in the preparation of a variety of aromatic compounds including dyes.