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What is Hinsberg's reagent? Give its one use. |
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Answer» Hinsberg Test :It is popular chemical test for the identification of primary, secondary and tertiary amines. In this, an amine is treated withBenzenesulphonyl chloride( Hinsberg reagent) in presence of aqueous alkali (KOH or NaOH). Following observations are found: Primary amines when treated with Hinsberg reagent gives N-ethylbenzenesulphonyl amide. Due to presence of strong electron withdrawing sulphonyl group, the H attached to nitrogen in sulphonamide is strongly acidic, thus, makes it soluble in alkali. When secondary amines treated with Hinsberg reagent, N,N-diethylbenzenesulhphonamide is formed. Due to absence of H atom, this compound is not acidic in nature, hence, insoluble in alkali. With tertiary amines, Hinsberg reagent gives no reaction. hit like if you find it useful |
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