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Self-condensation of two moles of ethyl ...

Self-condensation of two moles of ethyl acetate in presence of sodium ethoxide yields

A

ethyl butyrate

B

acetoacetic ester

C

methyl acetoacetate

D

ethyl propionate

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To solve the problem of what is produced from the self-condensation of two moles of ethyl acetate in the presence of sodium ethoxide, we can follow these steps: ### Step 1: Understand the Reactants - Ethyl acetate (C2H5COOCH3) is an ester and can undergo self-condensation. - Sodium ethoxide (C2H5ONa) acts as a base and facilitates the condensation reaction. ### Step 2: Set Up the Reaction - When two moles of ethyl acetate react in the presence of sodium ethoxide, they undergo a reaction known as "glycine condensation" or "crossed aldol condensation." ### Step 3: Mechanism of the Reaction 1. **Deprotonation**: Sodium ethoxide will deprotonate one of the ethyl acetate molecules, generating an enolate ion. 2. **Nucleophilic Attack**: The enolate ion then attacks the carbonyl carbon of the second ethyl acetate molecule. 3. **Formation of β-keto ester**: This results in the formation of a β-keto ester, specifically acetoacetic ester (CH3COCH2COOC2H5). ### Step 4: Identify the Product - The product of this self-condensation reaction is acetoacetic ester, which has the structure CH3COCH2COOC2H5. ### Step 5: Conclusion - Therefore, the final product of the self-condensation of two moles of ethyl acetate in the presence of sodium ethoxide is **acetoacetic ester**. ### Answer The self-condensation of two moles of ethyl acetate in the presence of sodium ethoxide yields **acetoacetic ester**. ---
To solve the problem of what is produced from the self-condensation of two moles of ethyl acetate in the presence of sodium ethoxide, we can follow these steps: ### Step 1: Understand the Reactants - Ethyl acetate (C2H5COOCH3) is an ester and can undergo self-condensation. - Sodium ethoxide (C2H5ONa) acts as a base and facilitates the condensation reaction. ### Step 2: Set Up the Reaction - When two moles of ethyl acetate react in the presence of sodium ethoxide, they undergo a reaction known as "glycine condensation" or "crossed aldol condensation." ...
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