Identify the product $(\mathrm{P})$ in the following reaction: i) $\mathrm{Br}_{2} / \mathrm{Red} \mathrm{P}$ ii) $\mathrm{H}_{2}\mathrm{O}$

JEE Main · 2024 · 08 Apr 2024 · Shift 1 · Aldehydes Ketones and Carboxylic Acids

Identify the product

(P)

in the following reaction:

i)

Br_{2} / Red P

ii)

H_{2} O

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

Answer: (A)

Solution

B r_{2}

/red P is the Hell–Volhard–Zelinsky reagent: it

α

-brominates a carboxylic acid. Cyclopentanecarboxylic acid gives the

α

-bromo acid after aqueous work-up (product 1). Option (1).

JEE Main · 2024 · 08 Apr 2024 · Shift 1 · Single correct option

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