F324 Unit 4: Amines and azodyes

Amines

 Can be primary, secondary or tertiary depending on how many Hs on the N have been replaced

Basicity

• Amines are weak bases
  • Each N has a lone pair
  • Can accept a proton, H+
  • Form dative covalent bonds when accepting protons
• Reactions:
  • react with acids to form a salt:
  • CH3CH2NH2 (ethylamine) + HCl > CH3CH2NH3+Cl- (ethylammonium)

Reactions

Preparation of primary aliphatic amines: 

Warm halogenoalkanes with an excess of ammonia using an ethanol solvent - nucleophilic sub.

CH3CH2CH2Cl…