question_answer

The source of nitrogen in Gabriel synthesis of primary amines is

A)  potassium cyanide

B)  potassium phthaiimide

C)  sodium azide                   

D)  sodium nitrite

Correct Answer: B

Solution :

                 Gabriel synthesis is used for the preparation of \[{{1}^{o}}\] amine (aliphatic as well as aromatic). In this reaction, phthalimide on treatment with ethanolic KOH forms potassium salt of phthalimide which on heating with RX followed be either alkaline hydrolysis or hydrazinolys with hydrazine produces the corresponding primary amine.