Primary, secondary and tertiary amines can be distinguished by

Question

Primary, secondary and tertiary amines can be distinguished by (A) Schiff's test (B) Fehling's test (C) Tollen's test (D) Hinsberg test

Tardigrade Admin · Accepted Answer

Hinsberg's reagent (benzene sulphonyl chloride) is used to distinguish 1°, 2° and 3° amines. With Hinsberg's reagent, 1° amines give a sulphonamide, soluble in alkali, 2° amines form a sulphonamide, insoluble in alkali, while 3° amines do not react at all.

Q. Primary, secondary and tertiary amines can be distinguished by

Schiff's test

Fehling's test

Tollen's test

Hinsberg test

Hinsberg's reagent (benzene sulphonyl chloride) is used to distinguish 1∘,2∘ and 3∘ amines. With Hinsberg's reagent, 1∘ amines give a sulphonamide, soluble in alkali, 2∘ amines form a sulphonamide, insoluble in alkali, while 3∘ amines do not react at all.