JEE • Chemistry

Oxidation Reaction

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KMnO4 / Dichromate Oxidation Map

The source begins oxidation with KMnO4 in both media or K2Cr2O7 in acidic medium.

SubstrateProduct shown

Aldehyde

acid

1∘1^\circ alcohol

acid

2∘2^\circ alcohol

ketone

3∘3^\circ alcohol

no reaction

alkene

R2C=O+R′COOHR_2C=O+R'COOH

R−C≡C−R′R-C{\equiv}C-R'

RCOOH+R′COOHRCOOH+R'COOH

aromatic side chain

benzoic acid side-chain product

oxidation ladder
1° alcoholaldehydeacid2° alcoholketonestrong oxidants reach acid3° alcohol: no reaction in listed oxidations

Notes

  • Oxidant: KMnO4KMnO_4 in both medium or K2Cr2O7K_2Cr_2O_7 in acidic medium.