Draw structural formulas for the diene and dienophile that combine in a Diels-Alder reaction to form the product shown. N(CHCH3)2 Diene + Dienophile COCHs . Consider E/Z stereochemistry of alkenes. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right comer. Separate multiple products using the + sign from the drop-down menu.