ammonia

methylamine / methanamine

ethylamine / ethanamine

tert-butylamine / 1,1-dimethylethanamine

diethylamine / N-ethylethanamine

triethylamine / N,N-diethylethanamine

tributylamine / N,N-dibutylbutanamine

piperidine / azacyclohexane

pyridine / azabenzene

cyclohexanamine

aniline /  benzenamine

ethylenediamine / 1,2-ethanediamine