How many structural isomers of amines exist with the molecular formula ? — Amines Chemistry Question

💡 Solution & Explanation

To find the structural isomers of $C_3H_9N$, consider the different classes of amines. Primary ($1^\circ$) amines: $CH_3CH_2CH_2NH_2$ (1-propanamine) and $CH_3CH(NH_2)CH_3$ (2-propanamine). Secondary ($2^\circ$) amine: $CH_3CH_2NHCH_3$ (N-methylethanamine). Tertiary ($3^\circ$) amine: $(CH_3)_3N$ (N,N-dimethylmethanamine). Summing these gives a total of 4 structural isomers.