Amine
From alkenes

Disubstituted alkenes react with HCN in the presence of strong acids to give formamides, which can be decarbonylated. This method, the Ritter reaction, is used industrially to produce tertiary amines such as tert -octylamine.

Hydroamination of alkenes is also widely practiced. The reaction is catalyzed by zeolite-based solid acids.
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