Chapter 21.9, Problem 21.27P

Interpretation Introduction

Interpretation:

A mechanism for the reaction of propanoyl chloride with $2$ moles of phenylmagnesium bromide is to be proposed.

Concept introduction:

Grignard reagent is used to generate ${\text{R}}^{-}$, carbanion which attack on electron deficient centre. Carbonyl group that has good leaving group gives substituted product. This reagent is used to convert carbonyl group into alcohol.