JEE Main Chemistry question

In which reaction is a nitrene not an intermediate?

(A)Schmidt reaction
(B)Curtius reaction
(C)Hofmann bromamide reaction
(D)Gabriel's phthalimide synthesisCorrect

Answer: (D)

Solution

The Schmidt, Curtius and Hofmann bromamide reactions all proceed through a nitrogen-deficient nitrene (or acylnitrene) intermediate that undergoes a concerted 1,2-alkyl/aryl shift to form an

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Question ID VK-150342