O CO₂Et This reaction involves an intramolecular aldol reaction followed by a retro aldol-like reaction. The steps i follows: ● Na OEt ethanol 1. Deprotonation to form enolate ion 1; 2. Cyclization via an intramolecular aldol reaction to form tetrahedral intermediate 2; 3. Collapse of the tetrahedral intermediate and bond cleavage to form enolate ion 3; 4. Protonation to form the final product. Write out the reaction on a separate sheet of paper, and then draw the structure of enolate ion 3. (+ [References] • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. . Do not include lone pairs in your answer. They will not be considered in the grading. • Do not include counter-ions, e.g., Na+, I, in your answer. Y CO₂Et {n [F

O CO₂Et This reaction involves an intramolecular aldol reaction followed by a retro aldol-like reaction. The steps i follows: ● Na OEt ethanol 1. Deprotonation to form enolate ion 1; 2. Cyclization via an intramolecular aldol reaction to form tetrahedral intermediate 2; 3. Collapse of the tetrahedral intermediate and bond cleavage to form enolate ion 3; 4. Protonation to form the final product. Write out the reaction on a separate sheet of paper, and then draw the structure of enolate ion 3. (+ [References] • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. . Do not include lone pairs in your answer. They will not be considered in the grading. • Do not include counter-ions, e.g., Na+, I, in your answer. Y CO₂Et {n [F

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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