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When two moles of ethyl acetate undergo self-condensation in the presence of sodium ethoxide, which product is formed?

1. Acetoacetic ester
2. Methyl acetoacetate
3. Ethyl propionate
4. Ethyl butyrate

Correct answer: Acetoacetic ester

Solution

Two molecules of ethyl acetate undergo Claisen self-condensation with NaOEt to give ethyl 3-oxobutanoate (ethyl acetoacetate), i.e. acetoacetic ester.

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