Which of the following is most reactive for d | vedclass

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Question

(A) Decarboxylation of $\beta$-keto acids is very easy because it proceeds through a stable six-membered cyclic transition state involving hydrogen bo

Vedclass · Accepted Answer

$CH_3CH_2COCH_2COOH$

Vedclass · Answer

(A) Decarboxylation of $\beta$-keto acids is very easy because it proceeds through a stable six-membered cyclic transition state involving hydrogen bonding between the carboxylic acid hydrogen and the carbonyl oxygen. Among the given options,$CH_3CH_2COCH_2COOH$ (option $A$) is a $\beta$-keto acid,where the carbonyl group is at the $\beta$-position relative to the carboxylic acid group. This allows for the formation of the stable cyclic transition state,making it highly reactive towards decarboxylation upon heating. Other options do not possess a $\beta$-keto group.

Which of the following is most reactive for decarboxylation?

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Assertion: $CH_3COCl$ is converted to $CH_3CONH_2$ on reaction with $NH_3$.
Reason: $Cl^{-}$ is a stronger nucleophile and better leaving group.

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