24syklöadditioner
24-syklöadditioner, also known as [4+2] cycloadditions or Diels-Alder reactions, are a type of pericyclic reaction in organic chemistry. This reaction involves a conjugated diene and a dienophile, which are unsaturated compounds, combining to form a six-membered ring. The reaction proceeds through a concerted mechanism, meaning all bond breaking and bond forming occurs in a single step with a cyclic transition state. This concerted nature leads to stereospecificity, where the stereochemistry of the starting materials is preserved in the product.
The reaction is named after Otto Diels and Kurt Alder, who were awarded the Nobel Prize in