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Phenols ArOH

Phenols ArOH. Preparation of phenols: 1-From chlorobenzene. 2-From sulphonic acid. 3-From amines. Reactions of phenols: 1. Acidity:. 2. Ether formation, Williamson synthesis:. Alkyl group can be oxidized by KMnO 4 but not RO-. 3. Ester formation:. Ring substitution:

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Phenols ArOH

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  1. Phenols ArOH

  2. Preparation of phenols: • 1-From chlorobenzene 2-From sulphonic acid 3-From amines

  3. Reactions of phenols: • 1. Acidity:

  4. 2. Ether formation, Williamson synthesis: Alkyl group can be oxidized by KMnO4 but not RO-

  5. 3. Ester formation:

  6. Ring substitution: A) Halogenation: • To obtain monohalogentaed product

  7. B) Nitration:

  8. C) Nitrosation: D) Sulphonation:

  9. E) Alkylation and Acylation: F) Fries rearrangement

  10. G) Kolbe reaction: - Salicylic acid is used for synthesis of Asprin.

  11. H) Rimer-Tiemann reaction:

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