Amines

Identify the substances A and B in each of the following sequences of reactions:
CH₃CONH₂ is a weaker base than CH₃CH₂NH₂

In CH₃CONH₂ the lone pair on N is delocalized with the carbonyl group. As a result, electron density on N decreases basicity decreases.

While in CH₃CH₂—NH₂, ethyl group is electron releasing makes the amine more basic than CH₃CONH₂.

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How is ethylamine prepared from acetonitrile? Compare its basic character with that of ammonia.

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Explain the following reactions by taking one suitable example in each case:
Gattermann’s reaction.

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How is aniline prepared commercially? Describe carbylamines test for primary amines.

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Show how p-amino azobenzene can be prepared from aniline?

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Identify the substances A and B in each of the following sequences of reactions:

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ROH is a stronger acid than RNH₂.

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Describe the method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.

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Write IUPAC names of following and classify them into primary, secondary, tertiary amines:
(CH₃)₂CHNH₂

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Explain the following reactions by taking one suitable example in each case:
Hoffmann's bromamide reaction.

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