Question 1 Compound A below undergoes Dieckmann cyclization to give compound B, in the presence of a base. Dieckmann 3-step synthesis ÇH3 cyclisation CHCH OEt Eto OEt CH3 Ô Base H3C CH3 H3C CH3 A B.
Question 1 Compound A below undergoes Dieckmann cyclization to give compound B, in the presence of a base. Dieckmann 3-step synthesis ÇH3 cyclisation CHCH OEt Eto OEt CH3 Ô Base H3C CH3 H3C CH3 A B.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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a) Give the appropriate base for the above reaction and draw the resonance structures of the enolate ions derived from compound A. Then write the mechanism for the formation of the Dieckmann cyclized product B.
b) If compound B above is reacted with NaBH 4 , draw the structure of the reduced product. Give a reason for your choice of product.
c) Being a β-ketoester, B could undergo a 3-step synthesis involving alkylation, hydrolysis and decarboxylation reactions to yield the cyclopentanone, C. Write the outline synthesis for each step which include the appropriate regents and correct intermediate.
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