Which of the following is a 3° amine?
• In case of Triethylamine, the number of H’s of ammonia replaced by tert-butyl group (an alkyl group) is 3. Hence it is an example of a 3 ◦ amine (R3N).
• Other 3 amines, ,
1-methylcyclohexylamine tert-butylamine
N-methylaniline
are secondary (2 ◦ R2NH), primary (1◦ RNH2) and again secondary (2 ◦ R2NH) amines respectively.