JEE Main 2016 Chemistry question

Bouveault-Blanc reduction reaction involves:

(1)Reduction of an acyl halide with /Pd.
(2)Reduction of an anhydride with
(3)Reduction of an ester with Na/.Correct
(4)Reduction of a carbonyl compound with Na/Hg and HCl.

Answer: (3)

Solution

The Bouveault-Blanc reduction converts an **ester into a primary alcohol** using sodium metal dissolved in ethanol — option (3). Mechanistically, sodium supplies single electrons to the carbonyl group, generating a radical anion that is protonated by the alcohol; repetition of this electron-then-proton sequence

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Question ID VK-115549