Various carboxylic acids react with ammonia to give an ammonium salt which further give amid on dehydration.

The phthalamide synthesized by this method is a starting point for various reactions used in chemical industries.
Various carboxylic acids react with ammonia to give an ammonium salt which further give amid on dehydration.
The phthalamide synthesized by this method is a starting point for various reactions used in chemical industries.