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Question 11 Which diene reacts the slowest with cyclopentadiene in a Diels-Alder reaction? O IV
Cyclopentadiene is a better diene for a Diels-Alder reaction that a non-cyclic diene like 1,3-pentadiene. However, this increased reactivity also causes cyclopentadiene to dimerize much more easily. Explain the why cyclopentadiene is more reactive than 1,3-pentadiene.
Choose the diene and dienophile pair that will give the fastest and
slowest Diels-Alder reaction. (+ draw each products)
CO diene CH2 CN CH2 dienophile CN CH2
For the following diels-alder reaction, identify the diene, the
dienophile, and the diels-alder adduct
For the following diels-alder reaction, identify the diene, the dienophile, and the diels-alder adductFor the following Diels?Alder reaction, identity the diene, the dienophile, end the Diels?Alder adduct.
Question 6 2 pts Which of the following cannot be a diene in the Diels-Alder reaction? ooooo III IV Il & IV O I&IV Only II Only IV Only! Only III II & III All the M.O.s of 1,3-butadiene are shown below. Which picture represents the Photochemically excited HOMO? 888 IV O IV O II
Which of the following can be used as the required diene in a Diels-Alder reaction? NO2 al b. 11 d. IV e. both ll and Ill
Diels-Alder Reaction: Provide the requirements for a diene and a dienophile for an optimal Diels-Alder reaction. Can naphthalene be used as a diene for a Diels-Alder reaction? Explain your answer.
When butadiene reacts with ethyne in a Diels-Alder reaction, what product is formed? O A. cyclohexa-1,4-diene OB. cyclohexyne OC. cyclohexene OD. cyclohexa-1,3-diene E. cyclohexane Reset Selection Question 4 of 10 1 Points How many nodes are in the highest energy MO for the allylic anion? OA. 1 OB.O OC. 2 OD. 3 Reset Selection
The Diels-Alder reaction involves the coupling between a diene and a dienophile. In the box below draw the structure of the bicyclic product obtained from the Diels-Alder reaction of the following compound with cyclopentadiene. • You do not have to consider stereochemistry. • In cases where there is more than one answer, just draw one.
Assume that the alkene reacts with the diene in a Diels-Alder reaction. Use the JSME ed tor structure can be found here ) to draw the structure of the product of the reaction. The guide on how to draw your [.2- CCCCCCCC-C1
Which diene would be unreactive in the Diels-Alder reaction? Select one: O a. ob. o c. O d.