Draw the structures of the nucleophilic B-keto ester and the aB-unsaturated ketone acceptor that were combined in a Robinson annulation to give the following product: Ph ČO,Et

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
Chapter24: Catalytic Carbon-carbon Bond Formation
Section: Chapter Questions
Problem 24.9P
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The Robinson annulation is a combination of two carbonyl coupling reactions, the Michael reaction and the intramolecular aldol condensation The most
common partners in the reaction are a nucleophilic donor (such as a cyclic ketone, a B-keto ester, an enamine, or a B-diketone) and an aB-unsaturated ketone
acceptor. The product is a substituted 2-cyclohexenone derivative.
Draw the structures of the nucleophilic 6-ketro ester and theaB-unsaturated ketone acceptor that were conbined in a Robinson annulation to give the following
product
Ph
CO,Et
• Draw the B-keto ester as an ethyl ester,
P.
Activate(Previous Ows
GoithSertinc
Transcribed Image Text:References The Robinson annulation is a combination of two carbonyl coupling reactions, the Michael reaction and the intramolecular aldol condensation The most common partners in the reaction are a nucleophilic donor (such as a cyclic ketone, a B-keto ester, an enamine, or a B-diketone) and an aB-unsaturated ketone acceptor. The product is a substituted 2-cyclohexenone derivative. Draw the structures of the nucleophilic 6-ketro ester and theaB-unsaturated ketone acceptor that were conbined in a Robinson annulation to give the following product Ph CO,Et • Draw the B-keto ester as an ethyl ester, P. Activate(Previous Ows GoithSertinc
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