Question

Reactivity order of dienes in diels alder reaction

Answer 1

Diels-Alder Reaction - Chemistry LibreTexts Cyclic dienes, on the other hand, are 'locked' in the s-cis conformation, and are especially reactive. The result of a Diels-Alder reaction involving a cyclic diene is a bicyclic structure: ... A particularly rapid Diels-Alder reaction takes place between cyclopentadiene and maleic anhydride.