Maximum decarboxylation occurs. A》CH3COOH .B》C6H5COOH .C》C6H5CH2COOH.D》CH3COCH2COOH. . .The correct option is 'D'.Please explain why the correct answer is Option 'D'.Please .?

Question

Answer

CH3COCH2COOH is a β-keto acid. Thus decarboxylation is maximum in a carboxylic acid containing an electron withdrawing group such as COOH at the β-carbon atom with respect to the - COOH group.

Answer

Decarboxylation is a chemical reaction that involves the removal of a carboxyl group (-COOH) from a molecule, resulting in the release of carbon dioxide (CO2). The maximum decarboxylation occurs when a molecule has a carboxylic acid group that is located adjacent to a carbonyl group (C=O), which is known as an alpha-carbonyl group. This is because the alpha-carbonyl group can stabilize the intermediate formed during the decarboxylation reaction, making the reaction more favorable.

Out of the given options, the correct answer is 'D', which is CH3COCH2COOH. This molecule has an alpha-carbonyl group adjacent to the carboxylic acid group, which makes it a good candidate for maximum decarboxylation. The other options do not have an alpha-carbonyl group adjacent to the carboxylic acid group and thus are less likely to undergo maximum decarboxylation.

In summary, the key factors that determine the maximum decarboxylation in a molecule are:

- Presence of an alpha-carbonyl group adjacent to the carboxylic acid group
- Stability of the intermediate formed during the decarboxylation reaction.

It is important to note that other factors, such as the strength of the carbon-carbon bond in the carboxyl group and the reaction conditions, can also influence the extent of decarboxylation.

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