The diene lactone shown in part (a) has one electron-donating group (¬OR) and one electron-withdrawing group(C“O). This diene lactone is sufficiently electron-rich to serve as the diene in a Diels–Alder reaction.(a) What product would you expect to form when this diene reacts with methyl acetylenecarboxylate, a strong dienophile?

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
Chapter18: Functional Derivatives Of Carboxylic Acids
Section: Chapter Questions
Problem 18.54P
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The diene lactone shown in part (a) has one electron-donating group (¬OR) and one electron-withdrawing group
(C“O). This diene lactone is sufficiently electron-rich to serve as the diene in a Diels–Alder reaction.
(a) What product would you expect to form when this diene reacts with methyl acetylenecarboxylate, a strong dienophile?

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