Primary amides

Amides have the functional group -CONH2. A functional group is a group of atoms that gives the molecule unique chemical properties. Molecules with the amide group (-CONH2) are very soluble in water, depending on their molecular size. Below is a table of the homologous series of primary amides.
Name
Formula
Structural formula
Methanamide
HCONH2
Ethanamide
CH3CONH2
Propanamide

CH3CH2CONH2

Butanamide
CH3CH2CH2CONH2
Shown on the right is one possible reaction pathway for the formation of a primary amide. Others do exist, however, the reaction shown here is between a carboxylic acid and ammonia reacting in a condensation reaction.

 

Name the amide shown on the right.

Solution

Name the amide shown on the right

Solution

Name the amide shown on the right

Solution

Name products A and B.
Draw the skeletal structure of the largest molcular product.

Solution