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Which of the following diene(s) cannot undergo the Diels-Alder reaction? II IV

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter6: Reactions Of Alkenes

Section: Chapter Questions

Problem 6.53P

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Which of the following diene(s) cannot undergo the Diels-Alder reaction?
II
IV
%3D

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Which of the following will not act as diene reactant in a Diels Alder reaction? A) B) D) OCH3 H,CO A
Diels—Alder reaction of a monosubstituted diene (such as CH2 = CH – CH = CHOCH3) with a monosubstituted dienophile (such as CH2 = CHCHO) gives a mixture of products, but the 1,2-disubstituted product often predominates. Draw the resonance hybrid for each reactant and use the charge distribution of the hybrids to explain why the 1,2-disubstituted product is the major product.
Diels–Alder reaction of a monosubstituted diene (such as CH2=CH– CH=CHOCH3) with a monosubstituted dienophile (such as CH2=CHCHO) gives a mixture of products, but the 1,2-disubstituted product often predominates. Draw the resonance hybrid for each reactant, and use the charge distribution of the hybrids to explain why the 1,2-disubstituted product is the major product.
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Diels–Alder reaction of a monosubstituted diene (such as CH2=CH–CH=CHOCH3) with a monosubstituted dienophile (such as CH2=CHCHO)gives a mixture of products, but the 1,2-disubstituted product oftenpredominates. Draw the resonance hybrid for each reactant, and use thecharge distribution of the hybrids to explain why the 1,2-disubstitutedproduct is the major product.
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