Question
What type of isomerism is exhibited by different pairs of amines?
Solution
a) CH3-CH2-CH2-CH2-NH2
Butanamine (primary)
b) Buta-2-amine (sec.)
c) 2-methyl propamine (pri)
d) 2-methylpropan-2-amine (pri)
e) CH3-CH2-CH2-NH-CH3
N-methylpropanamine (sec.)
f) CH3-CH2-NH-CH2-CH3
N-ethyl ethanamine (sec.)
(g) N-Methyl propan-2-amine (sec.)
h) N,N Dimethylethanamine (tert)
(iii) The pairs (a) and (b) and (e)and (g) exhibit position isomerism.
The pair (a) and (c); (a) and (d); (b) and (c); (b) and (d) exhibit chain isomerism.
The Pairs (e) and (f) and (f) and (g) exhibit metamerism.
All primary amines exhibit functional isomerism with secondary and tertiary amines and vice versa.
