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The diene lactone shown in part (a) has one

Organic Chemistry | 8th Edition | ISBN: 9780321768414 | Authors: L.G. Wade Jr ISBN: 9780321768414 33

Solution for problem 29SP Chapter 15

Organic Chemistry | 8th Edition

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Organic Chemistry | 8th Edition | ISBN: 9780321768414 | Authors: L.G. Wade Jr

Organic Chemistry | 8th Edition

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Problem 29SP

The diene lactone shown in part (a) has one electron-donating group  and one electron-withdrawing group .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?

(b) The Diels–Alder product A is not very stable. Upon mild heating, it reacts to produce CO2 gas and methyl benzoate (PhCOOCH3), a very stable product. Explain how this strongly exothermic decarboxylation takes place. (Hint: Under the right conditions, the Diels–Alder reaction can be reversible.)

Step-by-Step Solution:

Solution 29SP

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Chapter 15, Problem 29SP is Solved
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Textbook: Organic Chemistry
Edition: 8
Author: L.G. Wade Jr
ISBN: 9780321768414

This textbook survival guide was created for the textbook: Organic Chemistry, edition: 8. This full solution covers the following key subjects: diene, electron, Product, Alder, Diels. This expansive textbook survival guide covers 25 chapters, and 1336 solutions. Since the solution to 29SP from 15 chapter was answered, more than 482 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 29SP from chapter: 15 was answered by , our top Chemistry solution expert on 05/06/17, 06:41PM. Organic Chemistry was written by and is associated to the ISBN: 9780321768414. The answer to “The diene lactone shown in part (a) has one electron-donating group and one electron-withdrawing group .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 strongdienophile? (b) The Diels–Alder product A is not very stable. Upon mild heating, it reacts to produce CO2 gas and methyl benzoate (PhCOOCH3), a very stable product. Explain how this strongly exothermic decarboxylation takes place. (Hint: Under the right conditions, the Diels–Alder reaction can be reversible.)” is broken down into a number of easy to follow steps, and 92 words.

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