Which of the following dicarboxylic acids gives cyclic ketone on heating?

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$HOOC {({CH}_{2})}_{3} COOH$

${CH}_{2} (COOH)_{2}$

$HOOC {({CH}_{2})}_{4} COOH$

${({CH}_{2} COOH)}_{2}$

answer is D.

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Detailed Solution

adipic acid give cyclic ketone on heating

As seen by the aforementioned process, adipic acid produces cyclopentanone when heated. Decarboxylation is evident by the fact that it has one fewer carbon atom than adipic acid. Additionally, cyclization is caused by the loss of a water molecule.

Hence, option D is correct.

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