Question

Primary, secondary and tertiary amines may be separated by using:

• A. iodoform
• B. diethyloxalate
• C. benzenesulphonyl chloride
• D. acetyl chloride

Answer 1

The correct option is C benzenesulphonyl chloride

The amine is treated with benzenesulphonyl chloride and shaken with alkali solution when the three amine because in different way$.$

Primary amine from alkyl benzesulphoramide which dissolve in alkali to from sodium potassium salt of mono alkyl benzene sulphoramide$.$ Secondary amine from dialkali benzene$,$ in soluble in alkali solution and tertiary amines do not react with benzene sulphonyl chloride at all$.$