Dimethyl butynedioate undergoes a Diels-Alder reaction with (2E,4E)-2,4-hexadiene. Show the structure and stereochemistry of the product.

Diels-Alder reaction is an important organic reaction which includes a substituted alkene in the form of a dienophile and a conjugated diene. It proceeds via concerted mechanism (simultaneous bond breaking and bond formation). Diels alder reaction generates a 6 membered ring.

It is a pericyclic reaction between a conjugated diene and a dienophile. The reaction is stereospecefic i.e., the cis dienophile will give cis stereochemistry in product and trans dienophile will generate product with trans stereochemistry.

Diels-Alder Reaction

Diene is an organic compound which comprises of two or more double bonds separated by a single bond while dienophile is a diene loving compound or ( a substituted alkene with electron withdrawing group).When the interaction between them, occurs a transition state without any additional energy barrier, is obtained.

Diels-Alder Reaction