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Questions
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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Solution
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.
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Write a reaction to convert Aniline into p-bromoaniline.
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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 ____________.
Which of the following molecules form a Zwftter ion?
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 CORRECT statements.
(I) Aniline reacts with bromine water at room temperature to give o-bromoaniline.
(II) Aniline undergoes Friedel Craft's reaction using aluminium chloride.
(III) Direct nitration of aniline yields, a mixture of ortho, meta and para nitro aniline.
(IV) Amino group is ortho and para directing and powerful ring activating group.
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:
What is the action of aqueous bromine on aniline?
