Question 1

Which diene would you expect to react most rapidly with maleic anhydride?

Accepted Answer

The answer of Which diene would you expect to react...

Question 2

Which of these dienes is the most reactive in the Diels-Alder reaction?

Accepted Answer

The answer of Which of these dienes is the most...

Question 3

Which of the following pairs of compounds could be used as the basis for a Diels-Alder synthesis of the compound shown below?

Accepted Answer

The answer of Which of the following pairs of compounds...

Question 4

Which of the following would afford a synthesis of the following compound?

Accepted Answer

The answer of Which of the following would afford a...

Question 5

Which of the following would afford a synthesis of the following compound?

Accepted Answer

The answer of Which of the following would afford a...

Question 6

Which of these conjugated dienes can undergo a Diels-Alder reaction?

Accepted Answer

The answer of Which of these conjugated dienes can undergo...

Question 7

What would be the product of the following reaction?

Accepted Answer

The product of this reaction is III, which is sodium iodide (NaI). Only choice C correctly identifies NaI as the product, so it is the best choice. Choices A, B, D, and E are incorrect.

Question 8

Which diene and dienophile would you choose to synthesize the following compound?

Accepted Answer

The answer of Which diene and dienophile would you choose...

Question 9

Which diene and dienophile would you choose to synthesize the following compound?

Accepted Answer

The answer of Which diene and dienophile would you choose...

Question 10

Which diene and dienophile would you choose to synthesize the following compound?

Accepted Answer

The answer of Which diene and dienophile would you choose...

Question 11

Which of the following dieneophiles is most reactive in a Diels-Alder reaction:

Accepted Answer

The answer of Which of the following dieneophiles is most...

Question 12

Which of the following dieneophiles is most reactive in a Diels-Alder reaction:

Accepted Answer

The answer of Which of the following dieneophiles is most...

Question 13

Which of the following would afford a synthesis of the following compound?

Accepted Answer

The answer of Which of the following would afford a...

Question 14

Which diene and dienophile would you choose to synthesize the following compound?

Accepted Answer

The given compound has two double bonds, suggesting that it can be synthesized via a Diels-Alder reaction between a diene and a dienophile. Choice III has the correct diene, 1,3-butadiene, and the correct dienophile, maleic anhydride, to form the desired product. Therefore, the best choice is C.

Question 15

Which diene and dienophile would you choose to synthesize the following compound?

Accepted Answer

The synthesis of the target compound requires the formation of a six-membered ring through a Diels-Alder reaction. To achieve this, we want to choose a diene that can form a stable cyclic transition state with the dienophile. Choice II, cyclopentadiene, is a highly reactive diene that can easily form a stable transition state with a variety of dienophiles. The dienophile in this case is an electron-deficient alkyne, which can participate in a Diels-Alder reaction with cyclopentadiene to form the desired six-membered ring.

Question 16

Which of the following would afford a synthesis of the following compound?

Accepted Answer

The answer of Which of the following would afford a...

Question 17

What is the product of the following Diels-Alder cycloaddition reaction:

Accepted Answer

The answer of What is the product of the following...

Question 18

Which diene would be least reactive toward Diels-Alder addition of maleic anhydride?

Accepted Answer

The answer of Which diene would be least reactive toward...

Question 19

Which of these dienes can undergo a Diels-Alder reaction?

Accepted Answer

The answer of Which of these dienes can undergo a...

Question 20

Which of these conjugated dienes can undergo a Diels-Alder reaction?

Accepted Answer

The answer of Which of these conjugated dienes can undergo...

Quiz 13: Conjugated Unsaturated Systems

Which diene would you expect to react most rapidly with maleic anhydride?

Which of these dienes is the most reactive in the Diels-Alder reaction?

Which of the following pairs of compounds could be used as the basis for a Diels-Alder synthesis of the compound shown below?

Which of the following would afford a synthesis of the following compound?

Which of the following would afford a synthesis of the following compound?

Which of these conjugated dienes can undergo a Diels-Alder reaction?

What would be the product of the following reaction?

Which diene and dienophile would you choose to synthesize the following compound?

Which diene and dienophile would you choose to synthesize the following compound?

Which diene and dienophile would you choose to synthesize the following compound?

Which of the following dieneophiles is most reactive in a Diels-Alder reaction:

Which of the following dieneophiles is most reactive in a Diels-Alder reaction:

Which of the following would afford a synthesis of the following compound?

Which diene and dienophile would you choose to synthesize the following compound?

Which diene and dienophile would you choose to synthesize the following compound?

Which of the following would afford a synthesis of the following compound?

What is the product of the following Diels-Alder cycloaddition reaction:

Which diene would be least reactive toward Diels-Alder addition of maleic anhydride?

Which of these dienes can undergo a Diels-Alder reaction?

Which of these conjugated dienes can undergo a Diels-Alder reaction?