(i) Write structures of different isomeric amines corresponding to the molecular formula, C_(4)H_(11)N. (ii) Write IUPAC names of all the isomers. (iii) What type of isomerism is exhibited by different pairs of amines ?

(i) Write structures of different isomeric amines corresponding to the

1.	(i) Write structures of different isomeric amines corresponding to the molecular formula, C_(4)H_(11)N. (ii) Write IUPAC names of all the isomers. (iii) What type of isomerism is exhibited by different pairs of amines ?
Answer» SOLUTION :Different primary, secondary and tertiary amines with MOLECULAR FORMULA `C_(4)H_(11)N` along with IUPAC names are given below : Primary amines : (a) `underset("Butanamine")(CH_(3)CH_(2)CH_(2)CH_(2)NH_(2))"(b) "underset("Butan-2-amine")(CH_(3)CH_(2)-underset(underset(NH_(2))(\|))(CH)-CH_(3))` (c) `underset("2-Methylpropanamine")(overset(3)(C)H_(3)-overset(overset(CH_(3))(\|))(overset(2)(C)H)-overset(1)CH_(2)-NH_(2))"(d)"underset("2-Methylpropan-2-amine")(CH_(3)-underset(underset(CH_(3))(\|))overset(overset(CH_(3))(\|))(C)-NH_(2))` Secondary amines : (e) `underset("N-Methylpropanamine")(CH_(3)CH_(2)CH_(2)-NH-CH_(3))"(f) "underset("N-Methylpropan-2-amine")(overset(3)(C)H_(3)-overset(overset(CH_(3))(\|))(overset(2)(C)H)-NH-CH_(3))` (g) `underset("N-Ethylethanamine")(CH_(3)-CH_(2)-NH-CH_(2)CH_(3))` Tertiary amines : (h) `underset("N, N-Dimethylethanamine")(CH_(3)-overset(overset(CH_(3))(\|))(N)-CH_(2)CH_(3))` Following types of isomerism are EXHIBITED by different pairs of amines : Chain isomers : (a) and (c), (a) and (d), (b) and (c), (b) and (d). Position isomers : (a) and (b), (e) and (f). Functional isomers : All `1^(@)` amines are functional isomers of `2^(@)" and "3^(@)` amines and vice-versa. Metamers : (e) and (g), (f) and (g).