18-1 Naming Amines Amines can be either alkyl-substituted(alkylamines)or aryl-substituted (arylamines) Amines are classified depending on the number of organic substituents attached to nitrogen: ·Primary(RNH2) One organic substituent such as methylamine (CH3NH2) ·Secondary(RzNH) Two organic substituents such as dimethylamine [(CHa)2NH] 。Tertiary(RgN) Three organic substituents such as trimethylamine [(CHa)aN] CH3 CH3 CH3 H3C-C-OH H3C-N H3C-C-NH2 CH3 CH3 CH3 tert-Butyl alcohol Trimethylamine tert-Butylamine (a tertiary alcohol) (a tertiary amine) (a primary amine)Amines can be either alkyl-substituted (alkylamines) or aryl-substituted (arylamines) ▪ Amines are classified depending on the number of organic substituents attached to nitrogen: ▪ Primary (RNH2 ) ▪ One organic substituent such as methylamine (CH3NH2 ) ▪ Secondary (R2NH) ▪ Two organic substituents such as dimethylamine [(CH3 )2NH] ▪ Tertiary (R3N) ▪ Three organic substituents such as trimethylamine [(CH3 )3N] 18-1 Naming Amines