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Nomenclature of Amines

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Maharashtra State Board: Class 12

Key Points: Nomenclature of Amines

  • Common system: Aliphatic amine is named by adding 'amine' to the alkyl group (e.g., CH₃NH₂ – methylamine).
  • Same groups in 2°/3° amines: Use prefix di or tri before the alkyl group name (e.g., trimethylamine).
  • IUPAC – Primary amines: Named as alkanamines, replacing 'e' of alkane with 'amine' (e.g., methanamine).
  • IUPAC – 2° & 3° amines: Named as N-alkylalkanamine or N,N-dialkylalkanamine (e.g., N,N-dimethylmethanamine).
  • Multiple —NH₂ groups: Positions are numbered, terminal 'e' retained (e.g., ethane-1,2-diamine); aromatic amines named as aniline derivatives (e.g., N, N-dimethylaniline).
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