The mechanism that converts A to B when the product is heated for the reaction shown in Problem 24 .47 is to be determined. Concept introduction: The Diels–Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene commonly termed dienophile to form a substituted cyclohexane derivative. In a normal Diels–Alder reaction, the dienophile has an electron-withdrawing group in conjugation with the alkene; in an inverse-demand scenario, the dienophile is conjugated with an electron-donating group. Dienophiles can be chosen to contain a "masked functionality". The dienophile undergoes Diels–Alder reaction with a diene introducing such functionality onto the product molecule. A series of reactions then follows to transform the functionality into a desirable group.

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Chapter 24, Problem 24.54P

Interpretation Introduction

Interpretation:

The mechanism that converts A to B when the product is heated for the reaction shown in Problem 24.47 is to be determined.

Concept introduction:

The Diels–Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene commonly termed dienophile to form a substituted cyclohexane derivative.

In a normal Diels–Alder reaction, the dienophile has an electron-withdrawing group in conjugation with the alkene; in an inverse-demand scenario, the dienophile is conjugated with an electron-donating group. Dienophiles can be chosen to contain a "masked functionality". The dienophile undergoes Diels–Alder reaction with a diene introducing such functionality onto the product molecule. A series of reactions then follows to transform the functionality into a desirable group.

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