Step 2. Draw the ester-containing intermediate produced from step 1, and draw the next reactant or reagent, ifapplicable. Add curved arrows and any necessary charges and nonbonding electrons.SelectDrawRingsMoreErase 2. H3O*Show the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion. Include allformal charges and nonbonding electrons. In each step, draw only the species that react in that step. If an enolateresonance form is possible, draw only the carbanionic form. If a CH, group is being deprotonated, draw all H's on thereacting site. Tip: always omit ethanol byproducts.Step 1. Add curved arrows.SelectDrawRingsMoreErase:0 :H.HHHH

Claisen ester condensation reaction mechanism

Step 2. Draw the ester-containing intermediate produced from step 1, and draw the next reactant or reagent, if applicable. Add curved arrows and any necessary charges and nonbonding electrons. Select Draw Rings More Erase

Step 2. Draw the ester-containing intermediate produced from step 1, and draw the next reactant or reagent, if applicable. Add curved arrows and any necessary charges and nonbonding electrons. Select Draw Rings More Erase

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter14: Elimination

Section: Chapter Questions

Problem 22E

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Question

Step 2. Draw the ester-containing intermediate produced from step 1, and draw the next reactant or reagent, if
applicable. Add curved arrows and any necessary charges and nonbonding electrons.
Select
Draw
Rings
More
Erase

2. H3O*
Show the curved-arrow mechanism for the Claisen condensation of ethyl ethanoate treated with ethoxide ion. Include all
formal charges and nonbonding electrons. In each step, draw only the species that react in that step. If an enolate
resonance form is possible, draw only the carbanionic form. If a CH, group is being deprotonated, draw all H's on the
reacting site. Tip: always omit ethanol byproducts.
Step 1. Add curved arrows.
Select
Draw
Rings
More
Erase
:0 :
H.
H
H
H
H

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