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Question

What is the reagent used in Etard reaction?


A

Ethanoyl chloride

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B

Chromyl chloride

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C

Cadmium chloride

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D

SnCl2 and HCl

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Solution

The correct option is B

Chromyl chloride


The explanation for the correct option

B. Chromyl chloride

  • The Etard Reaction Mechanism allows aromatic methyl groups to be oxidized.
  • The reaction is named after the French chemist Alexandre Leon Etard and describes the use of chromyl chloride to oxidize aromatic methyl groups or heterocyclic bonded methyl groups to an aldehyde.
  • Toluene, for example, can be converted to Benzaldehyde by the Etard reaction, as shown below.

The explanation for the incorrect options

Since chromyl chloride is used as a reagent in Etard Reaction. Therefore, options A, C, and D stand incorrect.

Thus option B Chromyl chloride, CrO2Cl2 would be the correct answer.


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