Advertisements
Advertisements
प्रश्न
Aniline does not give Friedel-Crafts reaction. Give a reason.
उत्तर
Aniline does not undergo Friedel-Craft's reaction because the reaction takes place in the presence of AlCl3, but AlCl3 is a Lewis acid, whereas aniline is a strong basic. Thus, aniline interacts with AlCl3 to produce a salt.
The positive charge on the N-atom prevents electrophilic substitution in the benzene ring. As a result, aniline does not undergo the Friedel-Craft reaction.
APPEARS IN
संबंधित प्रश्न
How is chlorobenzene prepared from aniline?
Give reasons for the following:
Aniline does not undergo Friedel- Crafts reaction.
Write the structures of main products when aniline reacts with the following reagents :
Br2 water
Write the structures of main products when aniline reacts with the following reagents :
(CH3CO)2O/pyridine
What is the action of acetic anhydride on diethylamine?
What is the action of the following reagents on aniline?
Acetic anhydride
Illustrate the following reactions giving suitable example in each case
Acetylation of amines
In the nitration of benzene using a mixture of conc. \[\ce{H2SO4}\] and conc. \[\ce{HNO3}\], the species which initiates the reaction is ______.
What is the role of \[\ce{HNO3}\] in the nitrating mixture used for nitration of benzene?
Assertion: N, N-Diethylbenzene sulphonamide is insoluble in alkali.
Reason: Sulphonyl group attached to nitrogen atom is strong electron-withdrawing group.
When bromination of aniline is carried out by protecting – NH2. The major product is
In the following reaction, the reason for why meta-nitro product also formed is:
How can the activating effect of the −NH2 group in aniline be controlled?
Assertion (A): Bromination of benzoic acid, gives m-bromobenzoic acid.
Reason (R): Carboxyl group increases the electron density at the meta position.
