Which Statement Is NOT True About the Diels-Alder Reaction

question 3

Multiple Choice

Which statement is NOT true about the Diels-Alder reaction?

• A) It is a [4+2] cycloaddition reaction.
• B) The diene must be in the s-cis conformation to react.
• C) Most Diels-Alder reactions are reversible.
• D) It is a sigmatropic rearrangement.
• E) Electron donating groups on the diene and electron withdrawing groups on the dienophile favor product formation.

---

Definitions:

North America

A continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere.

Aquatic Ecosystems

Water-based environments—including oceans, lakes, rivers, and wetlands—that support a diverse range of life through complex interrelationships.

Mosses

Small, non-vascular plants that typically form dense green clumps or mats, often in damp or shady locations.

Lichens

Symbiotic associations between a fungus and a photosynthetic partner, usually an algae or cyanobacteria, which live together as a single, unique organism.