To prepare -C(C_2H_5)_2-OH by RMgX, which is the incorrect pair?

JEE Main Chemistry question

To prepare by , which is the incorrect pair?

(A)
(B)
(C)\phi MgBr + CH_3COCH_2CH_3 \xrightarrow{H_2O}Correct
(D)

Answer: (C)

Solution

The target, , needs its carbinol carbon to end up bearing one phenyl and two ethyl groups. In (A), adds to diethyl ketone (which already carries two ethyl groups), correctly giving the target. In (B), adds to ethyl phenyl ketone (which already carries one phenyl and one

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Question ID VK-148595