JEE PYQ: Haloalkanes And Haloarenes Question 14
Question 14 - 2019 (09 Apr Shift 1)
The major product of the following reaction is:
2-Hydroxycyclohexanone $\xrightarrow{1.\ \text{PBr}_3}$ $\xrightarrow{2.\ \text{KOH (alc.)}}$
(1) 2-Hydroxycyclohex-2-enone
(2) Cyclohex-2-enol
(3) 2-Bromocyclohexanone derivative
(4) Cyclohex-2-enone
Show Answer
Answer: (3)
Solution
$\text{PBr}_3$ converts $-\text{OH}$ to $-\text{Br}$, then alc. KOH causes elimination. The more stable conjugated product is formed.
BETA
