Chapter 21, Problem 7PP

Interpretation Introduction

Interpretation:

The structures of the products formed in the reactions are to be determined.

Concept introduction:

The Diels Alder reaction is a $\left[4+2\right]$ cycloaddition reaction in which a conjugated diene and dienophiles combine to form new $\sigma$ -bonds, forming a ring in the compound.

In Diels Alder reaction, the $4\pi$ electron of diene molecule combines with $2\pi$ electrons of dienophile by an electrocyclic reaction.