JEE PYQ: Aldehydes And Ketones Question 37
Question 37 - 2019 (10 Jan Shift 1)
2-cyclohexenone ester $\xrightarrow{\text{NaBH}_4/\text{MeOH}}$ X. Product:
(1). (Ketone reduced, ester reduced)
(2). (Allylic alcohol with ester intact)
(3). (Only C=C reduced)
(4). (Only ketone C=O reduced, ester intact)
Show Answer
Answer: (4)
Solution
NaBH$_4$ selectively reduces ketone C=O but does not affect ester or C=C double bond.