Chapter 19, Problem 26P

Interpretation Introduction

Interpretation:

In the given Dieckmann condensation reaction, the structural formula for the possible products is to be written and the major product is to be predicted.

Concept introduction:

The Dieckmann condensation is also known as intermolecular Claisen condensation, which is useful for the synthesis of five or six membered ring cyclic ß-keto esters.

Due to angle strain, the rings smaller than five members are disfavored.

Claisen and Dieckmann condensations are reversible.