Exhibit 23-8 Consider the Compound 2-Methyl-2-Carboethoxycyclopentanone,whose Structure Is Shown Below,to Answer the Answer

question 21

Essay

Exhibit 23-8
Consider the compound 2-methyl-2-carboethoxycyclopentanone,whose structure is shown below,to answer the following question(s).
-Refer to Exhibit 23-8.When 2-methyl-2-carboethoxycyclopentanone is treated with sodium ethoxide in ethanol solution followed by a mild aqueous acid work-up,5-methyl-2-carboethoxycyclopentanone is isolated as the major product.This reaction proceeds by a reverse Claisen condensation mechanism followed by a recyclization.On the structures provided below,show electron flow with arrows in this interesting reaction.

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