mechanisms

Cards (11)

  • H3C
    C
    H
    H
    Br

    + :Br -
  • H3C
    C
    H
    H
    CN
    + :Br -
  • STEP ONE Initiation
    Br2
    2Br .
    Essential condition: UV light
    CH3CH3 + Br. HBr + CH3CH2.
  • STEP TWO Propagation
    CH3CH2. + Br2 CH3CH2Br + Br.
  • STEP THREE Termination
    CH3CH2. + Br. CH3CH2Br
    CH3CH2. + CH3CH2. CH3CH2CH2CH3
  • Mechanism Summary for A-level AQA Chemistry
  • Acid catalysed elimination mechanism: alcohols alkenes
    The H+ comes
    from the
    conc H2SO4 or
    conc H3PO4
  • Acid catalysed addition mechanism for hydration of ethene
    The H+ comes from
    the conc H3PO4
  • Equation for formation of electrophile
    HNO3 + 2H2SO4 NO2
    + + 2HSO4
    • + H3O+
  • Equation for formation of the electrophile.
    AlCl3 + CH3COCl [CH3CO]+ + [AlCl4]-
  • Reaction Summary for A-level AQA Chemistry