Question:
When toluene is treated with chromium oxide and acetic anhydride, followed by hydrolysis, what is the product formed?
When toluene is treated with chromium oxide and acetic anhydride, followed by hydrolysis, what is the product formed?
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Chromium oxide is commonly used to oxidize methyl groups on aromatic compounds to carboxylic acids, as seen in the oxidation of toluene to benzoic acid.
Updated On: Apr 24, 2025
- Toluene-2,4-diol
- Acetyl toluene
- Benzyl alcohol
- Benzoic acid
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The Correct Option is D
Solution and Explanation
This reaction involves the oxidation of toluene using chromium oxide in the presence of acetic anhydride.
1. Step 1: Understand the reaction. - Chromium oxide (\( \text{CrO}_3 \)) is a strong oxidizing agent that oxidizes the methyl group (-CH$_3$) of toluene to a carboxyl group (-COOH), converting the methyl group to a carboxylic acid group. - Acetic anhydride is used to enhance the oxidation process. - Hydrolysis then converts the acylated intermediate into the final product.
2. Step 2: Identify the product. The oxidation of toluene results in the formation of benzoic acid. Thus, the product formed is benzoic acid.
1. Step 1: Understand the reaction. - Chromium oxide (\( \text{CrO}_3 \)) is a strong oxidizing agent that oxidizes the methyl group (-CH$_3$) of toluene to a carboxyl group (-COOH), converting the methyl group to a carboxylic acid group. - Acetic anhydride is used to enhance the oxidation process. - Hydrolysis then converts the acylated intermediate into the final product.
2. Step 2: Identify the product. The oxidation of toluene results in the formation of benzoic acid. Thus, the product formed is benzoic acid.
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