Cycloaddition

Cycloaddition is a chemical reaction where two molecules or parts of molecules join together to form a ring structure by simultaneously forming new bonds. This process involves the overlapping of their electron clouds in a concerted step, meaning all bonds are made at once. It’s a key method in organic chemistry for building complex ring-shaped molecules efficiently. An example is the Diels-Alder reaction, where a diene and a dienophile combine to create a six-membered ring. Cycloadditions are important in creating pharmaceuticals, plastics, and many advanced materials.