Identify the reagent(s) ' A ' and condition(s) for the reaction :

Identify the reagent(s) 'A' and condition(s) for the reaction :

  1. A=HCl; Anhydrous AlCl3
  2. A=HCl,ZnCl2
  3. A=Cl2; UV light
  4. A=Cl2; dark, Anhydrous AlCl3

Solution

For substitution at allylic position in the given compound, the reagent used is Cl2/UV light.

The reaction is free radical halogenation. 

Asked in: JEE Main 2021 (16 Mar Shift 2)

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