Chapter 15, Problem 15.39SP

Interpretation Introduction

To determine: The structures of an intermediate and the final product, with particular attention to their stereochemistry.

Interpretation: The structures of the intermediate and the final product, with particular attention to their stereochemistry are to be predicted.

Concept introduction: Cycloaddition reactions involve the addition of two or more unsaturated cyclic molecules. There is no need of nucleophile and an electrophile in these types of reactions.

Stereochemistry is the branch of chemistry that deals with $3\text{D}$ arrangement of molecules.

Decarboxylation reaction involves the release of carbon dioxide to form a product through the removal of carboxyl group. The reverse process is known as carboxylic reaction.