Amines are organic compounds containing nitrogen atoms derived from ammonia, characterized by their unique naming conventions based on substituents. They have a triangular pyramidal structure with an unshared electron pair at the nitrogen apex and are classified as primary, secondary, or cyclic amines based on their structure. Amines play significant roles in nature and synthetic applications, found in proteins, hormones, and various industrial products like dyes and drugs.

1. Amines

2. AMINES ARE ORGANIC
COMPOUNDS THAT CONTAIN
NITROGEN ATOMS WITH A LONE PAIR.
BASICALLY, THEY ARE DERIVED
FROM AMMONIA (NH3)

3. AMINES: COMMON (TRIVIAL)
NAMES ARE OBTAINED BY
ALPHABETICALLY ARRANGING THE
NAMES OF THE ALKYL
SUBSTITUENTS ON THE NITROGEN
AND ADDING THE SUFFIX -
AMINE (E.G., ETHYLMETHYLAMINE).

4. •Naming Primary Amines
•Identify the longest carbon chain bonded to
the amine nitrogen.
•Identify the substituents.
•Number the parent locant.
Rules in naming
Amine

5. COMPOUNDS CONTAINING A NITROGEN ATOM
BONDED IN A HYDROCARBON FRAMEWORK ARE
CLASSIFIED AS AMINES.

6. How does it happen?

9. Structure of Amines
An amine molecule has the shape of a somewhat
flattened triangular pyramid, with the nitrogen
atom at the apex. An unshared electron pair is
localized above the nitrogen atom.

10. Nomenclature

11. Cyclic Amine
In terms of naming they adopt the prefix
“cyclo” prior to “propane”, “butane” and
so on. Examples can be found in the table
below. If a hydrogen atom is replaced by an
amino group, -NH2 then the name changes to
reflect this by the use of the suffix “amine”.

12. NH2
cyclohexylamine

14. Amine as Substituent

15. •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. Synthetic
examples include polymers, dye stuffs and drugs.
Synthetic example of Amines

16. EXAMPLES ARE
ANILINE, ETHANOLAMINE
dyes
rubber
fibres