Chapter 22, Problem 22.92AP

Interpretation Introduction

(a)

Interpretation:

The curved arrow mechanism for the given reaction that can be used to form three-membered rings is to be predicted.

Concept introduction:

The curved-arrow notation is used to show the transfer of electrons from one atom to another. The curved arrow has two barbs (head and tail) which represent the direction of electron flow.

The chemical name of glycidic ester is $\text{α,β-epoxy}\text{ester}$. In the glycidic condensation process, the glycidic ester is formed by the condensation of aldehyde and ketone group with $\text{α-halo}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{}\text{ester}$ group.

Interpretation Introduction

(b)

Interpretation:

The curved arrow mechanism for the given reaction that can be used to form three-membered rings is to be predicted.

Concept introduction:

The curved-arrow notation is used to show the transfer of electrons from one atom to another. The curved arrow has two barbs (head and tail) which represent the direction of electron flow.

Acidic hydrogen is defined as hydrogen that carries positive charge when the acid dissociates. The acidity in esters depends upon the stability of enolate ion. The higher is the stability of enolate ion higher is the acidity.