Why cannot aromatic primary amines be pr | Class 12 Chemistry Chapter Amines, Amines NCERT Solutions

Question:

Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?

Answer:

Gabriel phthalimide synthesis is used for the preparation of aliphatic primary amines. It involves nucleophilic substitution (SN2) of alkyl halides by the anion formed by the phthalimide.

But aryl halides do not undergo nucleophilic substitution with the anion formed by the phthalimide.

Hence, aromatic primary amines cannot be prepared by this process.


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Comments

  • Raju
  • 2019-04-26 21:24:28

This answer is copy paste fro m NCERT


  • Rocky
  • 2019-04-06 00:42:56

Yah


  • Nikhil Sharma
  • 2019-03-08 02:00:31

Right information...small but very important


  • Azaz Mohammad
  • 2019-01-21 12:33:37

Nice and


  • rohit
  • 2019-01-19 22:03:37

thek hai par kam ka nahi


  • Akhil George
  • 2019-01-13 12:42:17

It's because the aromaticity of the benzene ring is lost lost after the formation of carbocationbformed by leaving of the halogen atom.


  • Vijay Yigam
  • 2018-12-27 00:06:08

Vry nic


  • Vijay Yigam
  • 2018-12-27 00:05:41

Osm


  • Aditya anand
  • 2018-11-21 06:36:30

Bad..but it's almost helpful


  • Ghosh Tanu
  • 2018-10-26 08:19:36

Right.but please answer the question of OM


Comment(s) on this Question

Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 12: Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?....