Which diene and dienophile would you choose to synthesize the following compound?
A)I
B)II
C)III
D)IV
E)None of these choices.

Question

Which diene and dienophile would you choose to synthesize the following compound? 
A)I 
B)II 
C)III 
D)IV 
E)None of these choices.

Quizplus · Accepted Answer

To synthesize the given compound, we need a 1,4-addition reaction. The diene should have two double bonds separated by a single bond (conjugated diene) and the dienophile should be electron-deficient. 
Among the given choices, only option II meets the requirements. It has a conjugated diene and the carbonyl group on the dienophile makes it electron-deficient. Therefore, option II is the best choice to synthesize the given compound.

Which Diene and Dienophile Would You Choose to Synthesize the Following