question_answer

Self-condensation of two moles of ethyl acetate in presence of sodium ethoxide yields: [AIPMT (S) 2006]

A) ethyl butyrate                

B) acetoacetic ester

C) methyl acetoacetate

D) ethyl propionate

Correct Answer: C

Solution :

[c] On condensation of two moles of ethyl acetate in presence of sodium ethoxide, gives ethyl aceto-acetate (ester). This condensation is an example of Claisen condensation because it is possible in those ester which have a-hydrogen atom.