Beckmann & Pinacol Rearrangement

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Step-by-step mechanism, carbocation stability, migratory aptitude and MCQ patterns for both rearrangements.

What you will be able to do

• Draw both mechanisms with correct curved arrows, step by step
• Predict the Beckmann amide from oxime geometry — the group anti to the OH migrates to nitrogen
• Solve any pinacol question with a two-decision method: cation first, migration second
• Rank carbocations and migrating groups, and see the whole family of 1,2-shifts at once

Inside these notes

1. One idea behind both reactions
2. Beckmann: mechanism
3. Beckmann: the anti rule
4. Pinacol: mechanism
5. Pinacol: the two decisions
6. Migratory aptitude
7. The 1,2-shift family
8. Traps, MCQs and revision

Useful for: JEE Advanced · MHT CET · TGT/PGT · B.Sc.

The notes