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JEE Main202226 Jun 2022Evening ShiftChemistryAldehydes and KetonesActual

Toluene can be easily converted into benzaldehyde by which of the following reagents?

Options

  1. ACrO 3 /acetic acid, H 3 O +
  2. BCrO 3 /acetic anhydride, H 3 O +
  3. CKMnO 4 / HCl , H 3 O +
  4. DCO ,   HCl ,   Anhyd .   AlCl 3

Correct answer

B. CrO 3 /acetic anhydride, H 3 O +

Step-by-step solution

Toluene is oxidised to benzaldehyde in presence of CrO 3 /acetic anhydride, H 3 O + Toluene is converted to benzylidene diacetate and hydrolysis reaction of benzylidene diacetate gives benzaldehyde.

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