Final answer:
In organic chemistry, nitrogen-containing organic compounds mainly include amines, where nitrogen is bonded to a hydrocarbon, and amides, where nitrogen is bonded to a carbonyl group. Other classes with nitrogen include nitriles and nitro compounds.
Step-by-step explanation:
The classes of organic compounds that contain nitrogen in their functional groups are primarily the amines and amides. Amines are organic compounds where the nitrogen atom is bonded in a hydrocarbon framework. They are considered a basic functional group. On the other hand, amides are formed when a nitrogen atom is bonded to one side of a carbonyl group. The synthesis of amides can occur through a condensation reaction between amines and carboxylic acids.
Aside from amines and amides, other nitrogen-containing organic compounds include nitriles, which have a carbon-nitrogen triple bond (C≡N), and nitro compounds, characterized by the presence of a nitro group (-NO2).