JEE Main · 2024 · 06 Apr 2024 · Shift 2 · Aldehydes Ketones and Carboxylic Acids

Consider the given reaction, identify the major product P.

(A)(see structure)
(B)(see structure)
(C)(see structure)
(D)(see structure)
✓ Correct

Answer: (D)

Solution

LiAlH_{4}

reduces the carboxylic acid to the primary alcohol,

CH_{3} CH_{2} OH

. PCC oxidises this to the aldehyde,

CH_{3} CHO

HCN/OH^{-}

adds across the carbonyl to give the cyanohydrin,

CH_{3} CH(OH)CN

. Acidic hydrolysis of the nitrile (

H_{2} O/OH^{-}, Δ

) converts

- CN

- COOH

, giving lactic acid,

CH_{3} CH(OH)COOH

JEE Main · 2024 · 06 Apr 2024 · Shift 2 · Single correct option

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