JEE Main levelSingle correct optionDifficulty 2 of 3g3181
For 2-methylcyclohexan-1-one, the thermodynamic (more substituted) enolate is favoured by
Aany strong base at any temperature, since the ratio is always the same
BLDA in THF at −78∘C with short reaction time
CNaOEt in ethanol at 25∘C, where proton transfers equilibrate the enolates
DLDA in THF at −78∘C followed by immediate quench with CHX3I
Answer: C
A weak base in a protic solvent makes deprotonation reversible. The enolates equilibrate and the more stable, more substituted one predominates. Irreversible LDA conditions at −78∘C give the kinetic enolate.