Click the structures and reaction arrows in sequence to view the 3D models and animations respectively
Diels-Alder reactions are cycloadditions which occur between a diene and a conjugated alkene, known as the dienophile.
Two sigma bonds are formed or broken in one concerted step – there are no intermediates at all. This type of reaction is known as a pericyclic reaction. As seen above, the endo transition state leads to the nitro group being opposite the CH2 bridge – for more information about endo and exo see this page.
Recognising a Diels-Alder product is easy. Look for a six-membered ring with a double bond inside the ring and a conjugating group outside the ring on the opposite side to the double bond.
We are sorry that this page was not useful for you!
Let us improve this page!
Tell us how we can improve this page (in your own language if you prefer)?