Question

p-toluenesulphonyl chloride is used to:

Options

• for the separation of a mixture of amines

• All of these

• for the distinction of primary, secondary and tertiary amines

• as a replacement of benzenesulphonyl chloride

Answer 1

All of these

Explanation:

p-toluenesulphonyl chloride can also be used instead of benzene-sulphonyl chloride to distinguish between 1⁰, 2⁰, 3⁰amines. Also, the product with a primary amine is soluble in alkali, the product with secondary amine is insoluble in alkali and tertiary amine does not give any reaction, therefore we can isolate and distinguish between primary, secondary, and tertiary amines.