In the reaction of acetyl chloride CH 3 COCl with aniline, H - atom of − NH 2 − group is replaced by acetyl group [ CH 3 CO − ] therefore this is a type of nucleophilic substitution. Acetanilide is treated with bromine in acetic acid mainly gives p-Bromoacetanilide. This p-Bromoacetanilide undergoes hydrolysis to give p-Bromoaniline. Aniline is an aromatic amine. its general structural formula is Ar − NH 2 . It contains the amine − NH 2 group. When aniline is warmed with the chloroform in the alcoholic alkaline solution, it generates an organic product which has a distinct bad or foul smell .this compound is an isonitrile (phenyl isocyanide) . R − NH 2 + CHCl 3 + 3 KOH ( alc . ) → warm R − NC + RNC + 3 H 2 O 1 o amine Alkyl isocyanide When acetanilide is treated with nitrating mixture that is a mixture of nitric acid and sulphuric acid p-nitroacetanilide is formed . Along with p-nitroacetanilide, o-nitroacetanilide is also formed as a minor product. NHCOCH 3 → 288 K HNO 3 , H 2 SO 4 NHCOCH 3 ( NO 2 ) + NHCOCH 3 ( NO 2 )

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Important Questions on Amines

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

Which of the following compounds will form significant amount of meta product during mono-nitration reaction?

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was :

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

Which one of the following nitro-compounds does not react with nitrous acid?

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

The nitrosation of

N, N -

dimethylaniline takes place through the attack of electrophile:

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

The major product obtained in the following reaction is:
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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

Formaldehyde on reaction with ammonia gives a compound

A

, which is on nitration yields cyclonite. The compound

A

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

A compound with molecular mass

180

is acylated with

{CH}_{3} COCl

to get a compound with molecular mass

390

. The number of amino groups presents per molecule of the former compound is

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

Aniline reacts with excess

{Br}_{2} / H_{2} O

to give the major product

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

The major product of the following reaction is:

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Chemistry>Organic Chemistry>Amines>Chemical Reactions of Amines

Aniline reacts with mixed acid (conc. ${HNO}_{3}$ and conc. $H_{2} {SO}_{4}$ ) at $288 K to give P (51 %), Q (47 %) and R (2 %)$ . The major product(s) of the following reaction sequence is (are)

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