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Curtius and Hofmann Rearrangements

Acetamide cha...

Question

Acetamide changes into methylamine by

A

Hofmann bromamide reaction

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B

Hofmann reaction

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C

Friedel-Craft's reaction

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D

Hinsberg reaction

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Solution

Correct option: (B)

Hofmann bromamide reaction: When an amide is treated with bromine in an aqueous or ethanolic solution of sodium hydroxide, degradation of amide takes place leading to the formation of primary amine.

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Similar questions

Q. Which of the following when reacted with acetamide would give methylamine:

Q. Assertion :The amide, N-methyl acetamide does not undergo Hofmann's bromamide degradation with

B r_{2} / N a O H

. Reason: It cannot form the required sodium salt of N-bromamide in the intermediate step of reaction.

Q. Assertion :In Hofmann bromide reaction, the amine formed has one carbon atom less than the parent

1^{o}

amide. Reason: N-methyl acetamide undergoes Hofimann bromamide reaction.

Q. Assertion :In Hoffmann bromide reaction, the amine formed has one carbon atom less than the parent

1^{o}

amide. Because Reason:

N -

methyl acetamide undergoes Hoffmann bromamide reaction.

Q. Acetamide is treated separately with following reagents. Which one of these would give methylamine?

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Curtius and Hofmann Rearrangements

Standard XII Chemistry

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