does not undergo the Diels-Alder reaction because:
A)ring systems cannot function as the diene component.
B)it cannot adopt the s-cis conformation.
C)it lacks electron-withdrawing groups.
D)it lacks strong electron-releasing groups.
E)the two double bonds are farther apart than in a non-cyclic conjugated system.

Question

does not undergo the Diels-Alder reaction because:
A)ring systems cannot function as the diene component. 
B)it cannot adopt the s-cis conformation. 
C)it lacks electron-withdrawing groups. 
D)it lacks strong electron-releasing groups. 
E)the two double bonds are farther apart than in a non-cyclic conjugated system.

Quizplus · Accepted Answer

The Diels-Alder reaction requires the diene component to be in the s-cis conformation for efficient reaction with the dienophile. However, the cyclohexene ring in 11eaa4bc_3deb_0265_9180_65f61ca74179_TB5902_00 is already in the s-trans conformation due to the strain in the ring, and cannot adopt the required s-cis conformation. Therefore, this compound cannot undergo the Diels-Alder reaction.

Does Not Undergo the Diels-Alder Reaction Because