Chapter 23, Problem 23.70P

Interpretation Introduction

Interpretation: The reason corresponding to the fact that ${\text{H}}_{\text{a}}$ is much less acidic than ${\text{H}}_{\text{b}}$ is to be stated. The mechanism for the given reaction is to be drawn.

Concept introduction: Alkylation of aldehydes and ketones takes place in the presence of a strong base. The use of appropriate base, solvent and temperature can yield one major product regioselectively.