Preparation of amides:

Amides are generally synthesized in the laboratory in several ways:
1. Anhydride reaction with ammonia

2. Ester reaction with ammonia

3. Reaction of acid chlorides with ammonia

4. Heating ammonium carboxylate salts


Amide hydrolysis:
Amida is very strong / resistant to hydrolysis. But the presence of concentrated acid or base, hydrolysis can occur producing carboxylic acid.