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

Ethyl propionate

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Ethyl butyrate

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Acetoacetic ester

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Methyl acetoacetate

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Solution

The correct option is C Acetoacetic ester
Ethyl acetate undergoes Claisen condensation in presence of sodium ethoxide involving a-hydrogen atom in which two molecules of ethyl acetate combine together to form acetoacetic ester.
$C H_{3} C O O C_{2} H_{5} + C H_{3} C O O C_{2} H_{5} C_{2} H_{5} O N a - ----- \to C H_{3} C O C H_{2} C O O C_{2} H_{5} A c e t o a c e t i c e s t e r + C_{2} H_{5} O H$

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