Q. 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
Explanation
[Solution from source] In the Claisen condensation, ethoxide removes an α-hydrogen from one ethyl acetate molecule and the carbanion attacks the carbonyl of another, expelling ethoxide. The product is CH₃COCH₂COOC₂H₅, ethyl acetoacetate (acetoacetic ester). It keeps the ethyl ester group, so it is not methyl acetoacetate. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.