7. 2 Preparation of Alkyl Halides: p 58 Radical chlorination of alkanes Alkane Cl2 or br2, heat or light replaces: Via free radical mechanism It is usually not a good idea to plan a synthesis that uses this method - hard to contro hv CH Cl CH3CI HCI CHoCI2 HCI 2 CHCla HCl Clo CCL Hcl Thomson· Brooks cole• Alkane + Cl2 or Br2, heat or light replaces:Via free radical mechanism • It is usually not a good idea to plan a synthesis that uses this method -Hard to control 7.2 Preparation of Alkyl Halides: Radical Chlorination of Alkanes p.58