The major product 'A' formed in the above rea | vedclass

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(D) The starting material is ninhydrin ($1,2,3$-indantrione). When it reacts with water $(H_2O)$,the central carbonyl group,which is highly electrophi

Vedclass · Accepted Answer

$2,2-$dihydroxy$-1,3-$indanedione (with intramolecular hydrogen bonding)

Vedclass · Answer

(D) The starting material is ninhydrin ($1,2,3$-indantrione). When it reacts with water $(H_2O)$,the central carbonyl group,which is highly electrophilic due to the electron-withdrawing effect of the two adjacent carbonyl groups,undergoes nucleophilic addition by water to form a gem-diol. This gem-diol is stabilized by intramolecular hydrogen bonding between the hydroxyl groups and the adjacent carbonyl oxygen atoms. The product is $2,2$-dihydroxy-$1,3$-indanedione.

The major product '$A$' formed in the above reaction is:

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