The compound which does not lead to benzoic acid by oxidation with KMnO4? is
Question:

The compound which does not lead to benzoic acid by oxidation with KMnO4KMnO_4 is

Updated On: Mar 4, 2024
  • Toluene
  • benzyl alcohol
  • n-butylbenzene
  • t-butylbenzene
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The Correct Option is D

Solution and Explanation

The compound which does not lead to benzoic acid by oxidation with KMnO4KMnO _{4} is tt -butylbenzene. In this compound, the side chain has no CHC - H bond at α\alpha -carbon (with respect to benzene nucleus) Hence, benzene ring get cleaved.





Toluene, benzyl alcohol, nn -butyl benzene and styrene all contain one benzylic CHC - H bond and on oxidation forms benzoic acid.
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Concepts Used:

Aldehydes, Ketones, and Carboxylic Acids

Aldehydes, Ketones, and Carboxylic Acids are carbonyl compounds that contain a carbon-oxygen double bond. These organic compounds are very important in the field of organic chemistry and also have many industrial applications.

Aldehydes:

Aldehydes are organic compounds that have the functional group -CHO.

Preparation of Aldehydes

Acid chlorides are reduced to aldehydes with hydrogen in the presence of palladium catalyst spread on barium sulfate.

Ketones:

Ketones are organic compounds that have the functional group C=O and the structure R-(C=O)-R’.

Preparation of Ketones

Acid chlorides on reaction with dialkyl cadmium produce ketones. Dialkyl cadmium themselves are prepared from Grignard reagents.

Carboxylic Acid:

Carboxylic acids are organic compounds that contain a (C=O)OH group attached to an R group (where R refers to the remaining part of the molecule).

Preparation of Carboxylic Acids

Primary alcohols are readily oxidized to carboxylic acids with common oxidizing agents such as potassium permanganate in neutral acidic or alkaline media or by potassium dichromate and chromium trioxide in acidic media.