Question

Presently which reagent is used for separation of $1^o,2^o$ and $3^o$ amines ?

• A. Benzene sulphonyl chloride
• B. p-toluene sulphonyl chloride
• C. p-amino benzene sulphonyl chloride
• D. m-toluene sulphonyl chloride

Answer 1

Answer: (B)

p-toluene sulphonyl chloride

$1^o,2^o$ and $3^o$ amines were generally separated by using Hinsberg's reagent (benzene sulphonyl chloride). But now a days p-toluene sulphonyl chloride is widely used for this purpose.