Hoffmann Bromamide Degradation reaction is shown by __________.a)ArNH2b)ArCONH2c)ArNO2d)ArCH2NH2Correct answer is option 'B'. Can you explain this answer?

Question

Answer

The Correct answer is option B
Hoffman bromamide degradation reaction is shown by ArCONH₂.
Where the aryl amide is converted to aryl amine in the presence of Br₂ and NaOH

Answer

The answer is both B and D in option d they said Aromatic so it will may be benzylamine hence hoffmann synthesis occurs

Answer

Hoffman degradation reaction C6H5.CONH2+Br2+4NaOH---------: (benzamide) C6H5NH2+Na2CO3+2NaBr+2H2O (aniline)

Answer

B

Answer

The Correct answer is option B
Hoffman bromamide degradation reaction is shown by ArCONH₂.
Where the aryl amide is converted to aryl amine in the presence of Br₂ and NaOH

Answer

The Correct answer is option B
Hoffman bromamide degradation reaction is shown by ArCONH₂.
Where the aryl amide is converted to aryl amine in the presence of Br₂ and NaOH

Answer

The correct answer is option 'B', ArCONH2.

Explanation:
Hoffmann Bromamide Degradation is a chemical reaction that involves the conversion of an amide group (CONH2) into an amine group (NH2) by the reaction with bromine (Br2) in the presence of a strong base such as sodium or potassium hydroxide (NaOH or KOH). This reaction is named after its discoverer, August Wilhelm von Hoffmann.

The reaction proceeds through a series of steps:

1. Formation of isocyanate intermediate:
- The amide group (CONH2) reacts with bromine (Br2) in the presence of a strong base (NaOH or KOH) to form an intermediate called an isocyanate.
- The bromine attacks the carbonyl carbon of the amide, resulting in the cleavage of the carbon-nitrogen bond and the formation of a bromoamide intermediate.
- The bromoamide intermediate then reacts with the base to eliminate a molecule of HBr, forming the isocyanate.

2. Rearrangement of the isocyanate:
- The isocyanate undergoes a rearrangement reaction called the Curtius rearrangement.
- In this rearrangement, the nitrogen atom migrates from the carbon atom to the neighboring carbon, resulting in the formation of an isocyanate intermediate.

3. Hydrolysis of the isocyanate:
- The isocyanate intermediate is then hydrolyzed in the presence of water (H2O) to yield an amine group (NH2).
- The hydrolysis reaction involves the addition of water across the carbon-nitrogen double bond of the isocyanate, resulting in the cleavage of the carbon-oxygen bond and the formation of an amine group.

Overall, the Hoffmann Bromamide Degradation reaction converts an amide group (CONH2) into an amine group (NH2) by a series of steps involving the formation and rearrangement of an isocyanate intermediate followed by its hydrolysis. Option 'B', ArCONH2, represents an amide group that can undergo this reaction.

Answer

The Correct answer is option B
Hoffman bromamide degradation reaction is shown by ArCONH₂.
Where the aryl amide is converted to aryl amine in the presence of Br₂ and NaOH

Answer

The Correct answer is option B
Hoffman bromamide degradation reaction is shown by ArCONH₂.
Where the aryl amide is converted to aryl amine in the presence of Br₂ and NaOH

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