Primary amines can be prepared by the reduction of nitriles. However, certain primary amines cannot be synthesized using this method.
Draw a structural formula of the chiral primary amine containing four carbon atoms that cannot be prepared by the reduction of a nitrile, and state its IUPAC name.
A student dissolves a few drops of butylamine (CH3CH2CH2CH2NH2\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{NH}_2CH3CH2CH2CH2NH2) in water.
(i) Write an equation for the reaction that occurs between butylamine and water.
(ii) State the color observed when Universal Indicator is added to the resulting solution, and explain why this color is observed.
