تفاعل هنز برج Hns berg test للتفريق بين الامينات الاوليه والثانويه والثالثيه

تفاعل هنز برج للتفريق بين الامينات الاوليه والثانويه والثالثيه 

Hns berg test :

electrophilic reagent, benzenesulfonyl chloride, reacts with amines in a fashion that provides a useful test for distinguishing primary, secondary and tertiary amines (the Hinsberg test). As shown in the following equations, 1º and 2º-amines react to give sulfonamide derivatives with loss of HCl, whereas 3º-amines do not give any isolable products other than the starting amine. In the latter case a quaternary "onium" salt may be formed as an intermediate, but this rapidly breaks down in water to liberate the original 3º-amine (lower 

right equation