JEE PYQ: Haloalkanes And Haloarenes Question 25
Question 25 - 2019 (11 Jan Shift 1)
The major product of the following reaction is:
4-Chlorocyclohex-2-enone $\xrightarrow{(i)\ \text{HBr}}$ $\xrightarrow{(ii)\ \text{alc. KOH}}$
(1) A chloro-substituted cyclohexenone
(2) Cyclohex-2-enol (via tautomerization)
(3) A chloro-bromo cyclohexenone
(4) A hydroxyl cyclohexenedione
Show Answer
Answer: (2)
Solution
HBr opens the ring/adds to the enone, then alc. KOH causes elimination. Tautomerization gives the final product.
BETA
