Chemistry Revision Notes for Class 12 Chapter 13 Amines

When hydrogen atom in ammonia molecule, is replaced by aryl or alkyl group, amines are obtained. Talking about the structure of amines the nitrogen atom in amine is trivalent. Based on the number of hydrogen atoms that are replaced by aryl or alkyl group, amines are classified into three types:

  • Primary amines
  • Secondary amines
  • Tertiary amines

Different methods of preparing amines:

  • Reduction of nitro compounds
  • Gabriel phthalimide synthesis
  • Ammonolysis of alkyl halides
  • Reduction of amides
  • Hoffmann bromamide degradation reaction
  • Reduction of nitriles

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Class 12 Chemistry Revision Notes Chapter 13 Amines

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In the preparation of alkanes; a concentrated aqueous solution of sodium or potassium salts of saturated carboxylic acid are subjected to