JEE Main Chemistry question

(CH₂CO)₂O + RMgX --H₂O--> ? product is

(A)ROOC(CH₂)ROOR (diester-type)
(B)RCOCH₂CH₂COOHCorrect
(C)An open-chain diol
(D)A cyclic lactone

Answer: (B)

Solution

Succinic anhydride ((CH₂CO)₂O) reacts with one equivalent of Grignard reagent at the more electrophilic/less hindered carbonyl, opening the ring to give,

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Question ID VK-149326