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प्रश्न
Give reasons for the following observation:
Aniline is acetylated before nitration reaction.
उत्तर
Aniline is acetylated, before the nitration reaction in order to avoid the formation of tarry oxidation products and protect the amino group, so that p-nitro derivative can be obtained as major product.
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संबंधित प्रश्न
Write the structures of main products when aniline reacts with the following reagents :
(CH3CO)2O/pyridine
Write short notes on acetylation.
What is the action of the following reagents on aniline?
Acetic anhydride
How will you convert the following?
Aniline into N−phenylethanamide
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
Give reasons for the following observation:
Aniline does not react with methyl chloride in the presence of anhydrous AlCl3 catalyst.
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.
