Types of organic compound amines mainly include the following:
Classification based on the number of hydrocarbon groups substituted on the nitrogen atom:
Primary amine (primary amine): amine with one hydrocarbon group substituted on the nitrogen atom.
Secondary amine (secondary amine): amine with two hydrocarbon groups substituted on the nitrogen atom.
Tertiary amine (tertiary amine): amine with three hydrocarbon groups substituted on the nitrogen atom.
Quaternary ammonium base and quaternary ammonium salt: compounds equivalent to ammonium hydroxide and ammonium salt.
Classification based on the type of hydrocarbon group connected to the nitrogen atom:
Aliphatic amine: the hydrocarbon group connected to the nitrogen atom is an aliphatic hydrocarbon group.
Aromatic amine: the hydrocarbon group connected to the nitrogen atom is an aromatic hydrocarbon group.
Classification based on the number of amino groups in the molecule:
Diamine: the molecule contains two amino groups.
Triamine: the molecule contains three amino groups.
Other classification methods:
Nitro reduction: Amines are obtained by nitro reduction. Common methods include hydrogenation reduction using Pd/C or Raney Ni, or chemical reducing agents such as Fe and SnCl2.
Amide reduction: Amines are obtained by reducing amides using LiAlH4, which is suitable for mild reduction conditions.
