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🧪 Chemistry  ·  Aldehydes, Ketones and Carboxylic Acids  ·  NEET & JEE

In Beckmann rearrangement, an oxime is converted to:

Answer: Amide.

  • A Amide
  • B Amine
  • C Nitrile
  • D Imine

Correct answer: A. Amide

Explanation: Beckmann rearrangement converts a ketone oxime to an amide via migration of the anti group.

Nucleophilic Addition to C=ONu:-CORR'CO-RR'Nu

Curved arrows show the nucleophile attacking the carbonyl carbon while the C=O pi electrons move onto oxygen, giving a tetrahedral alkoxide intermediate.

Concept context

Aldehydes, ketones, carboxylic acids, and their derivatives (esters, amides, acid chlorides). Key reactions include nucleophilic addition, Aldol condensation, Cannizzaro, and Claisen. Very heavily tested in JEE and NEET.

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