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प्रश्न
Give reasons for the following observation:
Aniline is acetylated before nitration reaction.
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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
How is chlorobenzene prepared from aniline?
What is the action of the following reagents on aniline?
Bromine water
Account for the following:
Although the amino group is o, p-directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Write short notes on acetylation.
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
What is the role of \[\ce{HNO3}\] in the nitrating mixture used for nitration of benzene?
A solution contains 1 g mol. each of p-toluene diazonium chloride and p-nitrophenyl diazonium chloride. To this 1 g mol. of alkaline solution of phenol is added. Predict the major product. Explain your answer.
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?
