Secondary and tertiary amines react with nitrous acid in a
different manner 6 Reaction with arylsulphonyl chloride
Benzenesulphonyl chloride (C6H5SO2Cl), which is also known as
Hinsberg’s reagent, reacts with primary and secondary amines to
form sulphonamides (a) The reaction of benzenesulphonyl chloride with primary amine
yields N-ethylbenzenesulphonyl amide