Aromatic amines are called by their historical/trivial names,with phenylamine being called aniline H H N(CH2CH3)2 CH2CH3 CH3 aniline 2-ethylaniline N.N-diethylaniline 4-methylaniline or o-ethylaniline or p-toluidine Other nitrogen heterocycles have ring system names that need to be learnt also.(The N is normally considered to be numbered 1). CH3 pyrrole pyrrolidine 1-methylpyrrolidine imidazole ndo (N-methylpyrrolidine) CH3 pyridine 2-methylpyridine piperidine pyrimidine Ch19 Amines(landscape) Page 4 Ch19 Amines(landscape) Page 4 Aromatic amines are called by their historical/trivial names, with phenylamine being called aniline. Other nitrogen heterocycles have ring system names that need to be learnt also. (The N is normally considered to be numbered 1)