Question

1,4-Benzoquinone is a good Diels–Alder dienophile. Predict the products of its reaction with

(a) buta-1,3-diene

(b) cyclopenta-1,3-diene

Short answer

The acetylenic component that is seeking a diene in the Diels-Alder reaction is known as a dienophile.

Step-by-step solution

Dienophile:

The acetylenic component that is seeking a diene in the Diels-Alder reaction is known as a dienophile.

Diels-Alder Reaction:

A chemical reaction in which a conjugated diene and dienophile take part to form a substituted cyclohexene derivative is termed a Diels-alder reaction.

Subpart (a) Reaction of 1,4 benzoquinone with buta-1,3-diene.

The product of the reaction is:

Subpart (b) Reaction of 1,4 benzoquinone with cyclopenta-1,3-diene.

The product obtained from this reaction is: