End product in the following reaction (CH_3)_3C-CHO + CH_3CH_2CHO OH^- A [-H_2O] H^+ B NaBH_4 C ; C is _____

MHT CET Chemistry question

End product in the following reaction \mathrm{(CH_3)_3C-CHO + CH_3CH_2CHO \xrightarrow{OH^-} A \xrightarrow[-H_2O]{H^+} B \xrightarrow{NaBH_4} C}; C is

(A)
(B) with a group joined below the CH
(C)
(D)Correct

Answer: (D)

Solution

has no alpha hydrogen, so propanal supplies the enolate: crossed aldol gives (A), acid dehydration gives

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Question ID VK-079591