Chapter 16, Problem 16.49P

Interpretation Introduction

Interpretation: The reason as to why methyl vinyl ether $\left({\text{CH}}_{\text{2}}={\text{CHOCH}}_3\right)$ is not a reactive dienophile in the Diels-Alder reaction is to be explained.

Concept introduction: Diels-alder reaction is a cycloaddition reaction in which two molecules combine to form a new ring. In this type of reaction, syn addition takes place. It is a reaction between diene with a dienophile to yield a cyclohexene. The reactivity of dienophile depends upon the electron withdrawing groups that are responsible for making dienophile more electrophilic.