Exams › NEET › Chemistry

What is the initial step in the Hoffmann bromamide reaction mechanism?

1. (a) An amide (RCONH2) reacts with bromine (Br2) to form an N-bromoamide (RCONHBr) and hydrogen bromide (HBr).
2. (b) The N-bromoamide (RCONHBr) reacts with hydrogen bromide (HBr) to produce an acyl bromide (RCONBr) and water (H2O).
3. (c) An amide (RCONH2) combines with bromine (Br2) to yield an N-bromoamide (RCONHBr) along with hydrogen bromide (HBr).
4. (d) The N-bromoamide (RCONHBr) undergoes reaction with hydrogen bromide (HBr) to give an acyl bromide (RCONBr) and water (H2O).

Correct answer: (a) An amide (RCONH2) reacts with bromine (Br2) to form an N-bromoamide (RCONHBr) and hydrogen bromide (HBr).

Solution

The Hoffmann bromamide reaction involves the reaction of an amide (RCONH2) with bromine (Br2) and a base, leading to the formation of an intermediate bromamide (RCONHBr). This matches option A.

Related NEET Chemistry questions

• Which of the following is \( 3^{0} \) amine?
• The electrolytic reduction of nitrobenzene in strongly acidic medium produces:
• Which of the following reactions is appropriate for converting acetamide to methanamine?
• Which of the following reagents will convert p-methylbenzenediazonium chloride into p-cresol?
• Diazo coupling is useful to prepare some
• Method by which aniline cannot be prepared is:

⚔️ Practice NEET Chemistry free + battle 1v1 →