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13.6 Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.
Answers (1)
Primary, secondary and tertiary amines are distinguished by the Hinsberg's reagent test. In this test, the amines are allowing to react with benzene sulphonyl chloride(Hinsberg's reagent). All three types of amines give different products.
1.Primary amine reacts with benzene sulphonyl chloride gives N-ethylbenzene sulphonamide which is soluble in alkali.
2. when secondary amines react it gives N, N-diethyl benzene sulphonamide which is insoluble in alkali.
3. Tertiary amine does not react with Hinsberg's reagent.
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