Halogenation of Alkenes Alkene halogenation reaction Common laboratory reaction Limited primarily to marine organisms in nature Carried out by enzymes called haloperoxidases that oxidize Br or Cl ions to a biological equivalent of Br+or Cl+ 1.“Br+" 2.CI Br B-Ocimene CI BrAlkene halogenation reaction ▪ Common laboratory reaction ▪ Limited primarily to marine organisms in nature ▪ Carried out by enzymes called haloperoxidases that oxidize Br￾or Cl￾ions to a biological equivalent of Br+ or Cl+ Halogenation of Alkenes