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प्रश्न
Answer the following.
Write a reaction to bring about the following conversions: Aniline into p-nitroaniline
Explain nitration of aniline. Write reactions for the preparation of p-nitroaniline.
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उत्तर
Nitration: Direct nitration of aniline yields (p-nitroaniline) a mixture of ortho, meta, and para nitroanilines. In an acidic medium the -NH2 group is protonated to the -N+H3 group which is meta-directing and deactivating. Hence, a considerable amount of m-nitroaniline is obtained.
Preparation of p-nitroaniline: However, to get p-nitroaniline as a major product, the –NH2 group is first protected by acetylation and then nitration is carried followed by hydrolysis amide.
संबंधित प्रश्न
Answer the following
Write a reaction to convert Aniline into p-bromoaniline.
Answer the following
Complete the following reaction :
\[\ce{C6H5NH2 + Br2_{(aq)} -> ?}\]
Answer the following.
Write a reaction to bring about the following conversions: Aniline into sulphanilic acid?
Aniline on reaction with bromine water produces ________________
The following compound is a/an ____________.
Identify the product 'B' in the following reaction.
\[\ce{Benzamide ->[Br2/KOH] A ->[Br2 water][298 K] B}\]
Which of the following molecule can form a zwitter ion?
Identify the product obtained when chlorobenzene is heated with ammonia and Cu2O at 473 K under pressure.
Which of the following groups increases the basic strength of substituted aniline?
The major product obtained when aniline undergoes sulphonation using cone. sulphuric acid at 453-473 K is:
Aniline on reaction with Bromine water at room temperature gives ____________.
When propanamide is treated with bromine and aqueous sodium hydroxide, the compound formed is ____________.
Consider the given reaction, percentage yield of:
In case of substituted aniline the group which decreases the basic strength is ______.
What is the action of aqueous bromine on aniline?
