JEE Main levelSingle correct optionDifficulty 2 of 3g3180
2-Methylcyclohexan-1-one is treated with one equivalent of LDA in THF at −78∘C. The major enolate is formed by removal of
Athe H from C-2 (the CH bearing the methyl group), giving the more substituted C=C
Ban H from the methyl group on C-2
Can H from C-3
Dan H from C-6 (the CHX2 side), giving the less substituted C=C
Answer: D
LDA is a strong, bulky base and deprotonation is irreversible, so kinetic control operates. The base removes the more accessible hydrogen at C-6 faster. The less substituted (kinetic) enolate results.